Add isolated USB interface (for calibration and control), Add 5v power output on rear (USB A socket). The display drive resistors seem undersized for what the shift register can source. You need to identify the correct tap/relay that SHOULD be active for that range and confirm it is closing and holding . This repository contains a KiCad project for a Korad KA3005P display driver, included are the schematic, pcb layout and gerber files. When I added up these features/advantages and the price, it . endstream endobj 649 0 obj <>stream due to transistor -leakage). I don't have access to a schematic, so there is no way to evaluate the design, but the innards look great. Before deciding on the software, one should have a better picture on the actual hardware to control. '66+cgY tZ4pG0H"sefv i6e?P"``J: d2p>0` D To calculate the overall star rating and percentage breakdown by star, we dont use a simple average. Hell ! A Free & Open Forum For Electronics Enthusiasts & Professionals, Login with username, password and session length. Below you'll find the bill of materials for this board. Esetleg, ha valakinek van egy eredeti fotja a gprl, hogy hogyan nzett ki teljes harci dszben, azt is nagyon megksznnm. Try a search for it. Only a couple of ohms between the inputs of the array to ground. Szeretnm ptolni. Pricing and Availability on millions of electronic components from Digi-Key Electronics. It may need to get really, really hot before anything happens. Schematics (provided by forum member pomonabill221 in this thread: https://www.eevblog.com/forum/repair/korad-ka3005p-power-supply-calibration/30/: https://www.eevblog.com/forum/repair/korad-ka3005p-power-supply-calibration/?action=dlattach;attach=77401 Please do not offer the downloaded file for sell only use it for personal usage! In old times, before simulations finding the right compensation was a little tricky and still is, as in some cases even the layout has an influence. sibajnk. Ht megprbltam There are supplies with even more capacitance at the output, that are still considered good. hideg,de a tranzisztorok jk,megcserltem ket.Ez mg a teljesen Three dual op-amps is plenty for a linear bench supply with an analog regulation loop. Hung Chang (HC) DSO 2100 PC szkp tpegysg tpts s fleg zajszrs, Fluke PM3370 szervizmen belps (Megoldva), Mzelis akkucella tesztel hinyos, ptolni szeretnm a hinyokat, If you have any question about repairing write your question to the. The Korad KA3005P is a 1-channel programmable power supply (0-30V/0-5A) with both USB/serial and RS232 connectivity. Features Plug and play operation eliminates need to find virtual TTY port. The capacitor C34 at the sense inputs could be a problem. IMHO the 100ms transient response (no opamp is THAT slow) and the steps in the voltage after turn-on (watch Dave's video) speak a clear language. If a little paranoid, have a fuse (e.g. Creative Commons Attribution 4.0 International Az elektronsugr fnt van a holdon :-((( Safety Symbols Download File name KA3305P programming software - V4.0.zip amount of downloads 202 preview File name KEL103 Programming Software - V4.1 amount of downloads 327 File name KA6003P programming software V7.0.zip amount of downloads 74 File name KA6002P programming software V7.0 Improve regulation and transient performance. The original PCB comes with 4.0mm LEDs, but I went for 5.0mm because those are more readily available. Szerintem ez egy akkucella mr. I guess lessons learned here is that if you even design a power supply, make sure it is is safe even *if* your MCU outputs "please emit smoke" combination, Quote from: pomonabill221 on 10 Jan, 2017 23:36, Quote from: mos6502 on 10 Jan, 2017 07:36, Quote from: Tony Mach on 03 Aug, 2017 13:57, Quote from: rufusalceste on 16 Oct, 2017 13:23, https://www.eevblog.com/forum/repair/korad-ka3005p-power-supply-calibration/msg370823/#msg370823, Powered by SMFPacks Advanced Attachments Uploader Mod, This works on my KA3005 - other hardware revisions may have critical differences (There is much strangeness in the schematic), AFAIK one can not read out the original firmware - so once you overwrite the original firmware you can not go back, There is no calibration routine, the calibration values are hardcoded, CooCox and the debugger are strange Relays sometimes switch when you load new firmware this contributed to me having once shot the power transistors, I make mistakes (I once reached a peak value late at night of 2 bugs per 1 line of code) this also contributed to the aforementioned incident where I shot the power transistors, Memory is not implemented (M1 to M5 not done), The interface to USB/serial is not implemented (my PSU model is without the interface board, and one would need to reverse-engineer the protocol, so this maybe will never happen), The LEDs flicker under certain conditions (I know how to fix that, but haven't had the time to do it), Haven't fully figured out the temperature-ADC yet, Fan is switched on with the output, and runs aways with full speed while output is on, IMHO the adjustment of voltage and of the current is nicer in my firmware (and I might improve it even further by a little bit), Considering the power rating of the transformer, and of the transistors, I think it could be possible in future to "overdrive" the PSU and output more voltage, or possibly even more current, under certain circumstances (if one stays within the ratings of those components), One could implement custom behaviour (e.g. 91,60 exkl. hkk0>nLWK65[ ICe!TGK| if there is kind of slow acting / temperature sensing protection. 0 Members and 2 Guests are viewing this topic. This usually is less than a diode drop, but for an accurate voltage one should still have a low resitance connection if the sense inputs are not used. I can adjust voltage and current, and the respective values are displayed! Ez az talakt +/-5V-ot llt el ganknt 1,5A-es terhelhetsggel. In the normal CC/CV regulation circuit, the OP that is not in linear operation will usually go to saturation. One seems dead.. Reviewed in the United States on May 18, 2022. Can't read the markings, but they look like they might be op-amps to me. This chapter contains important safety instructions that you must follow when operating the KA3000 & KA6000 series and when keeping it in storage. Reviewed in the United States on July 22, 2016. KORAD KA3005P display schematic errors upand_at_them Apr 9, 2022 U upand_at_them Active Member Apr 9, 2022 #1 See the attached image. 19% MwSt. This repository contains a KiCad project for a Korad KA3005P display driver, included are the schematic, pcb layout and gerber files. The transformer will likely not like more than about 2A on the long run when at 30 V, 3 A at up to 14 V might work. See below. Gbor, Kedves Kollgk! Disabling it will result in some disabled or missing features. GitHub - Nicoretti/ka3005p: Command line tool to remote control Korad, Tenma, RS, Velleman, Stamos, power supplies and other clones. endstream endobj startxref Welcome to DONGGUAN KORAD TECHNOLOGY CO., LTD. AddF9, Building D2, Kechuang Center, Songshan Lake Intelligent Valley, No. High quality, feature-rich supply for a great price, Reviewed in the United States on April 18, 2018. When power supply is in Make memories act like memories (long press to save). :Li,"9? DZKJ Schematic PhoneRepair Tools Activation Price; Pandora Box Digital Activation 1 Year Access Price; Ufi Box Setup v1.7.0.2661 Released; Advertisement. Final schematic and PCB attached to this post. Ezt talltam: MEAN WELL DKE15A-05 Details Select delivery location In Stock Qty: 1 This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. The Korad KA3005P power supply comes with the following accessories: User manual; Power cord; USB-cable (USB-A to USB-B) Downloads. See Korad KA3005P/Info for more details (such as lsusb -v output) about the device. I looked at a lot of supplies and bought this one based on the reviews. I purchased this to replace a big power supply I built back in the early 1970s. It could be there just so the MCU knows to shut everything down in an over-temperature situation. The Korad KA3005P has a DC output on/off button and it is very thoughtfully wired into the product (more on that later). - ka3005p-display/ka3005p . Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. KORAD-3005-Arduino-ESP8266. kostenfreie Lieferung 50+ ab Lager lieferbar If you don't won't to poke around the circuit when life, one can usually solder wires to the test-points and connect everything to a DMM / scope before powering up. It worked all well. A vlaszokat tovbbra is a privtbl kikldbe krnm, az ltalam felhozott okokbl. Follow along with the video below to see how to install our site as a web app on your home screen. I would more suggest diodes parallel to D11 / D12 to have the high frequency feedback from the power outputs - this helps to reduce ringing from inductance in the output lines. It might be a good idea to still have the protection diode to GND, as the extra capacitor (if used) can make it react on fast changes (e.g. As a retired engineer, I'm used to using the high-end stuff, but $500+ is a little much for home use. The cables are laced (always a good sign of care being taken), the transformer is huge and the heat sinking looks good. com. An explanation of why the output voltage may behave like it is here is that the still lower connected tap can eventually charge the smoothing cap to almost it's full AC peak value when there is no load current(since no winding loss and almost no Vf drop on the diodes when no current through them etc) this may just be high enough to activate the highest tap (~22V) thus the intermediate tap is effectivley skipped, but lower tap cannot reach that 22V level with even a few mA load current present. I was impressed with the assembly. hbbd``b`a`N 5@U DL) nqWAzy)b`bd?7@ . hinyzik belle. endstream endobj 648 0 obj <>stream Quote from: cowana on August 25, 2016, 11:02:04 am, Quote from: Kleinstein on September 02, 2016, 09:38:05 am, Quote from: Kleinstein on September 02, 2016, 02:10:47 pm, Quote from: Kevin.D on September 02, 2016, 07:10:21 pm, https://www.eevblog.com/forum/testgear/tenma-72-10480-(korad-ka3003d)-power-supply-noisy-fan/, Quote from: rdl on September 11, 2016, 10:10:51 pm, Quote from: Kleinstein on September 03, 2016, 07:32:13 am, Quote from: mrchen on September 11, 2016, 09:11:07 pm, Quote from: Kleinstein on September 17, 2016, 01:39:58 pm, Quote from: Kleinstein on September 17, 2016, 04:08:29 pm, Quote from: Kleinstein on September 17, 2016, 07:57:56 pm, Powered by SMFPacks Advanced Attachments Uploader Mod, Replace the rotary encoder with a higher quality one, with a centre press for navigation through menus, Replace the R_2R ladders with a proper 16 bit DAC, Add a seperate high spec 16 bit ADC, with built in 30ppm reference. When I added up these features/advantages and the price, it . File Size 498.49 kB Previous File Panasonic NV-A5A NV-A5EN Service Manual, Schematic and other Next File JBL Xtreme 2 (S/N Starting from GG) Schematic, Service Manual V1.3 0 Reviews 0 Comments You may only provide a review once you have downloaded the file. You are using an out of date browser. Unfortunately I do not know how to properly verify the taps and the relays. Note: This feature currently requires accessing the site using the built-in Safari browser. It depends on the hardware and desired functions how complicated it would get wirting your own software. KA3005P Schematics - ; KORAD 3005 EEPROM - EEPROM ( P D) KORAD_ESP8266 - Arduino IDE This repository contains a KiCad project for a Korad KA3005P display driver, included are the schematic, pcb layout and gerber files. See if there are any active components on this path, check resistors and check if the U10 input gets a stable DC voltage (probably varying between 0-5 V or so, scaling linearly with the output signal). In most circuits I have seen so fat the diode D3 is on the other side of the shunt. fuente digital. There are likely thin traces coming from J2 (or the input header) going via some resistors to U10. Your recently viewed items and featured recommendations, Reviewed in the United States on March 22, 2013. Power supply virtual TTY port is identified by its serial ID in the '/dev/serial/by-id' directory. It does have a thermal cutout embedded in it, but I'll add a separate temperature sensor to my schematic - that way it can start winding back the current as the temperature approaches the cutout point. Thanks Kleinstein - your input to this project has been really helpful! Hopefully will smooth out anything picked up as they cross the board, LC filter added to +12v providing the main transistor control signals. The BAS16 should be OK for the small signal use and protection. I tested it by charging almost empty 72Ah car leadacid battery at 14V 4-5A, under supervision a few times. I disagree, 330F is way too much. HlVMT7_a$dWM % \~mGUg. << 1 Ohm) - so still > 99% of the drop are corrected. And the NPN symbols are upside-down. Ott felmerlt, hogy ki lehetne vltani a bels +/-5V-os tpot a melegeds miatt kls egysgre. Only one of them toggled from 0 to 3V. You were absolutely right and thank you very much for the inputs !!! Sort out OVP and OCP. :taps2: This board can replace the existing KA002_V3.x PCB in a Korad KA3005P (or KA3005D) power supply. MwSt. Excellent supply for users with higher current needs, Reviewed in the United States on November 3, 2015. KORAD KA Series multiple channel DC power supplies KORAD KA Series multiple channel DC power supplies 7 C.C C.V OUT M2 M3 M4 M1 Indication of saving and recalling 5 setups stored internally; OUT is output indicator. If light on, there is voltage output in the output terminal. The main part could very well be interfacing the LCD output. So I have a faulty KA3005D and maybe someone finds the information helpful I have gathered so far (unfortunately I am not done yet). The Korad KA3005P has a DC output on/off button and it is very thoughtfully wired into the product (more on that later). So one should likely reduce the maximum current - at least when the higher transformer tap is used. P >#a1AX &P{3 -hh 3T07x)(_^J0.3:K3 Ok sorry, didn't know what level of beginner you where. There are supplies with even more capacitance at the output, that are still considered good. Korad KA3005D Programmable DC Power Supply (30V ~ 5A) | Korad DC Power Supply Part-1 . Many power supplies get really unhappy when they have to sink current. $;ml#|{n: y pd/0- CG XQ&UkaK2KNLc x3=7 0i&mO[fQ0>uqWW. hSfkl_~Uk@BnZ`2IR?- &+RRYFlPe*K(t;3(o:]@q)@03u=t:;S7 u$'K_Wy*Z?Mkl/Z 5$``\3QiLY9fmKB\;s0U Use connector with detection pin, so OVP is set to 5v when USB is plugged in, Large protection diode (5A rated) moved to the output side of the shunt, Shunt resistor lowered to 50mR to decrease power required, and opamp gain increased to match, The second stage of opamps (which get saturated) are now a OP2177. I am having a strange problem with my KORAD 6005D (60 V 5A model ) !!!! KORAD KD3005P - Programmable Precision Variable Adjustable 30V, 5A DC KORAD KD3005P - Programmable Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade, Learn more how customers reviews work on Amazon. License. Got it yesterday, these are first impressions: Reviewed in the United States on April 6, 2023. ), Zonal E/E will transform automotive architectures, Linux-capable applications processor family targets edge applications. GsmClinic Online Store. There are no reviews to display. relay? Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them. Separate high current return path for relays, fan and speaker amplifier, Back EMF protection diodes on the relays. This work is licensed under a Creative Commons Attribution 4.0 International KA3005P datasheet (10.32 MB) Download: KA3005P user manual (161.1 KB) Download: KA3005P handleiding (222.96 KB) Download: Similar products. Looking for similar korad manual? This connector is empty in the D-model ( no connector plugged ), while in the P-model there is a 4 pin wire to the USB board on the back of the unit. I purchased this KORAD KA3005P power supply primarily to replace a 30V 3A variable supply that was generating too much noise in the output (over 100mV of switching noise). See Korad KAxxxxP series for information common to all devices in this series. Popular . Good practice was used. - | Attention!!! However this might add a minimal offset error (e.g. Well, I reached a crucial point with my firmware for my KA3005: The basic functionality (and everything needed for this) is working!!! Is there another PCB in there with opamps? Leglbb a ptlsok hitelesek lehetnnek klsleg is. Share: Facebook Twitter More Loading. PS305D Schematic Display.pdf. Apart from one concern (below) I'm quite pleased with it. A mrcscsok s a snt (?) rdekldm, hogy tud-e valaki rla bvebbet ? Anyway the OP2177 should even include some internal diodes. Rigol?) Great programmable linear PSU for the price, Reviewed in the United States on September 28, 2019. Testing with a better load (constant current, 0.4A), it seems to act like this: Still sounds like the tap responsible for the 15-22V range is not connecting, or maybe contacting briefly but not holding due to a low V+unreg supply to it or an intermittent/poor connection from inverter/driver ic. The Korad KA3005P has a DC output on/off button and it is very thoughtfully wired into the product (more on that later). Even with just 100 Ohms for sense to power output, there will be a little drop on this resistor. Are you sure you want to create this branch? C.C is constant current indicator. Igazbl az a krds: van-e valamilyen univerzlisan hasznlhat L-C ramkr, vagy krelni kne valamilyen svszrt hozz? However there is a possibility to add some circuitry to prevent this to make the cross over faster. It could also make the buzzer activate at this point in order to alert the user. If something doesn't work - disable ad blockers, | Section Help | How to download, . It's obvious that the shift registers are labeled wrong, should be 74HC595. 7 Yanhe North Road, Liaobu Town, Dongguan City, 523000, Guangdong Province, P. R. China. F9, Building D2, Kechuang Center, Songshan Lake Intelligent Valley, No. Van egy fluke pm3370 kombiszkpom.A menben van egy olyan rsz ami kdot kr a belpshez.Nem tudja vletlenl valaki,hogy mi lehet ez a szm? So maybe at least a 5 A type, maybe more. Document preview [1st page] It should be totally silent if you're only drawing a few mA, not idling at 1000rpm! I tested it by charging almost empty 72Ah car leadacid battery at 14V 4-5A, under supervision a few times. 50 Ohm-1K range) between the power output and the sense line. Korad Ka3005p Display-board - View presentation slides online. It worked all well. The first thing I did when I got this was to pull the cover off. Because it doesn't look like there's analog regulation circuits on there. Tag: korad ka3005p programming manual. dv! Diodes to the supply should be OK for limiting at the input. Nowt on that schematic but there maybe a series resistor ~180 or so knocking about then . Hi Cowana .I agree with you on modifying rather than building from scratch . A normal lab supply is not expected to be very fast in regulation, as this makes is really difficult to have it stable with any possible load. Very happy with the performance and apparent quality of this 5A linear power supply. 508.8 KB Page --- Category METER SERVICE MANUAL If you get stuck in repairing a defective appliance download this repair information for help. Az albb linkelt topikban mr volt sz errl a szkprl: For an AZ OP I would really consider this. fggleges eltrtre. Ksznm a segtsget. Depending on the divider used this could be something like 1-0.1% of the voltage. Hi . Just guessing here, but maybe the NTC has nothing to do with the fan. Posted on 25.11.2018 by Penoff Posted in Drivers, LabVIEW Tagged 72-25, driver, ka3005p, korad, LabVIEW, power supply, ps3005d, rnd lab, tenma, velleman. KA3005P - 0 ~ 30VDC Output Bench (AC to DC) Power Supply LED 0 ~ 5A Output Features Adjustable or Fixed Selection Switch, Programmable, Regulated, RS-232, USB Interface from SRA Soldering Products. I'm very happy with this unit; it's a great value for the price. . So if you have a load that needs fast current spikes, add local decoupling capacitors. The zener diode for protection might cause some errors due to leakage. It also analyzed reviews to verify trustworthiness. How about U5-U7 (top right in the second picture)? The ULN2003 driver has them already, but dedicated diodes limit the size of the current loop, Small (10nF) capacitor across the + and - sense lines. Korad KA3005P Labornetzteil Programmierbares Labornetzteil, 1 Kanal (30V/5A), 150W, 10mV/1mA Auflsung, USB/RS232-Schnittstelle Variante 109 KA3005P (Schraubklemmen) 119 KA3005P+ (Schraubklemmen) 119 KA3005P+ (Sicherheitsbuchsen) 119 KA3005P+ (US) ab 109,00 inkl. This is stored in a configuration file and from then on the power supply is plug and play. You may only provide a review once you have downloaded the file. Slightly higher noise, but no voltage setting resistors needed, and will do the job, Diode isolating of the 24v supply used for the +6/-6v analog rails, to stop that dropping under the main load, A seperate LC filter on the part of the 5v rail used for the analog section, to cut out digital noise, Ferrite beads on the power supply of ADC and DAC, 100R series resistors on the SPI lines, to prevent ground bounce between digital and analog sections, Various pin swaps on the STM32 to aid with routing. The user interface is easy to learn, as is the PC software. Previous Snake Game Next Numeric zZF(8v~Nvx ^;L{kv*j'K*!q3ZoV_j Aus{P`^jZ) wCv$}mJ3B55cT39HcqN ;L-{'= >S+RY35/L939U| 9RyO]s)gxq78( *. I can't compare the over-current protection speed to other supplies, but seems fine for my uses. Ha mkdhet univerzlis megolds, akkor szvesen fogadnk kapcsolsokat, rtkeket. The KA3005P arrived in a box with molded foam inserts so it was decently packaged. Posts: 12690 Country: Re: Korad KA3005P power supply faulty/repair Reply #101 on: January 10, 2017, 01:46:49 pm Having something like 330 F at the output of a lab power supply is about normal. I have labs available when I need them; I mostly work from home on embedded systems firmware and this supply is ideal. Right. Ha esetleg volt benne snt, akkor annak mekkora volt az rtke ? Charging a battery without series diode is risky, especially if you turn of the power supply with the battery connected. My email address: franky @ 99centHobbies . The description somewhat sounds like a problem with transformer tap switching. The chassis, transformer, controls and main capacitors/switching transistors make up a lot of the cost of a PSU - so using these existing elements provides a much better starting point than beginning a PSU project from scratch. Like I said, I would trace the voltage measurement connections and go from there. Usually D3 should be a rather beefy one, so it can stand as much as the strongest supply someone might put in series. It includes the full source code and VIP installer for JKI VIPM. Read the following before any operation to insure your safety and to keep the best condition for the KA3000 & KA6000 series. a short). This is a good supply if you need tight voltage control at substantial amperage with a current-limiting feature. Controlling the DAC / ADC should be relatively straight forward, unless they used the C and a few external parts to implement a kind of high resolution sigma delta of other integrating ADC. Spilt resistor biasing modified to suit, Addition of heatsinks to the two main linear regulators, Changing these linear regulators from 317s to 7812/7805s. Felttelezem, a DC-DC konverter mkdsbl addan zajos a kimenete. A 100 Ohm resistor usually does not introduce a significant error, as the sense line is usually still low impedance (e.g. If at all it should be rather small (more like 1 nF), as a delay could be a problem. Service manuals, schematics, eproms for electrical technicians, If you get stuck in repairing a defective appliance. Add proper temperature control to the fan. @5LD_@'UNO3f~(2P\^H FEwZU$9.k$( z6KNHa zL( ) Kszi! "soft start", or specialized battery charger, or or or ), One could add an output relay, or maybe even an MOSFET as an output switch. Subscribe to product related information and materials, Strive to become the most satisfied instrument and equipment supplier for all users. Viszont durvn zajos lett a szkp jelkpe. Indeed. I got this power supply a couple of days ago and it worked well until today. Reviewed in the United States on May 18, 2015. Hantek? Please make sure that you are posting in the form of a question. Python and Tkinter based GUI for the KD3005P programmable power supply. -http://alii.pub/61d78f, 30 5 (30 5). %%EOF tranzisztoros darab,bkebeli. Ksznettel: ), but this is more to protect the resistor from overload (if the power connection gets lost or a user uses just the sense terminal). I think there was another piece of crappy software from one of the Chinese test equipment manufacturers (Owon? This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. A Reversible Mod To The Korad Ka3005p Power Supply Supply To Have A Nice And Quiet The slow transient response could also be a really over damped loop response (at least it won't oscillate), for example. There was a document posted not too long ago here. talaktottam, mgpedig gy, hogy tvgtam a stabil kockk kimeneti lbait, s bektttem a DC-DC konverter kimeneteit (a kt +5V-os g prhuzamostva). RND 320-KA3305P are multiple-channel digital control and programmable power supplies, which reflect a variety of features about digital control, such as the fast recall, and the parameters seng of Overcurrent Protection and Overvoltage Protection independently to provide the convenient and reliable operation environment. Thanks Kleinsein - that's a good point about the transformer potentially being a limiting factor. These cheap supplies often run rather hot and squeeze more current out than they should. H\j0 b!x,P`KPBvxB I loved my old supply, because I designed and built it, but mine was crude and didn't have any sort of display. Maybe a worn out relay contact or a loose wire / blown fuse from the transformer. Every solder point I touch brings a PCB closer to death I'm more a software person So I'm glad the debug connection is working. Uploaded by . You can still see all customer reviews for the product. 663 0 obj <>/Filter/FlateDecode/ID[<93EAE9118E54A841A9422156710A80EC><1A0FFE54F929A74FA81186F025D572BE>]/Index[644 27]/Info 643 0 R/Length 93/Prev 647461/Root 645 0 R/Size 671/Type/XRef/W[1 2 1]>>stream In addition to the lower ripple of a linear power supply, the separate output switch, and a relatively small footprint, the Korad KA3005P is a programmable device. http://elektrotanya.com/?q=hu/content/hc-dso2100-pc-oszcilloszkop-jel-vizszintesen-remeg-megoldva hb```,,@ (go8x Ag=1nyc``Y0@q,Ur9%4L.HuH-trPwBZj WlW8CD& KORAD KA3010P -Precision Variable Adjustable 30V, 10A DC Linear Power Supply Digital Regulated Lab Grade byKORAD Style: KA Series - 10 Amp ProgChange Write a review How customer reviews and ratings work Same for current from 10s of milliamps up to the max. 670 0 obj <>stream Mode 1: Before setting, push the knobs to adjust the voltage and current digits. Please tick the box below to get download link: Tiszteletem! E-mail krissy@koradtechnology.com Add F9, Building D2, Kechuang . The photos show turn-on, turn-off, and over-current shutdown, 3v into 10 ohms. Broken micro? Total Price: $34.90 Display driver board for the Korad KA3005P/KA3005D power supply. Increase max output voltage limit for low currents (eg 35v at 500mA). Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. The $30-$50 units seemed too cheap and the reviews certainly reflect that. 4 A) behind the shunt, just in case - the diode should be stronger than that fuse. You signed in with another tab or window. Contents 1 Hardware 2 Photos 3 Protocol 4 Resources Hardware Photos This, of course, has displays for both voltage and current, and can be programmed so that a pre-programmed current is not exceeded.
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