Difference between revisions of "Korad KAxxxxP series"
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{{Infobox power supply | {{Infobox power supply | ||
| image = [[File: | | image = [[File:Velleman ps3005d mugshot.png|180px]] | ||
| name = Korad | | name = Korad KAxxxxP | ||
| status = supported | | status = supported | ||
| source_code_dir = korad- | | source_code_dir = korad-kaxxxxp | ||
| channels = 1 | | channels = 1 | ||
| channel1 = various | | channel1 = various | ||
| Line 9: | Line 9: | ||
| channel3 = | | channel3 = | ||
| channel4 = | | channel4 = | ||
| connectivity = USB/serial | | connectivity = USB/serial, RS232 | ||
| features = programmable presets | | features = programmable presets, over voltage protection, over current protection, output on/off | ||
| website = [http://koradtechnology.com | | website = [http://koradtechnology.com koradtechnology.com] | ||
}} | }} | ||
The '''Korad | The '''Korad KAxxxxP''' series are 1 channel switch-mode programmable power supplies with both USB/serial and RS232 connectivity. | ||
The devices are also sold as rebranded versions by e.g. Velleman. | The devices are also sold as rebranded versions by e.g. Velleman, Tenma/Farnell, Stamos, or RND. | ||
== Devices == | == Devices == | ||
| Line 22: | Line 22: | ||
{| border="0" style="font-size: smaller" class="alternategrey sortable sigroktable" | {| border="0" style="font-size: smaller" class="alternategrey sortable sigroktable" | ||
|- | |- | ||
! | !Device | ||
! | !OEM/Rebranded | ||
!Voltage range | !Voltage range | ||
!Current range | !Current range | ||
| Line 29: | Line 29: | ||
|- | |- | ||
| | | [http://www.koradtechnology.com/product/14.html Korad KA3003P] | ||
| [[Velleman PS3005D]] | | [http://uk.farnell.com/tenma/72-2535/power-supply-1ch-30v-3a-prog/dp/2445411 Tenma 72-2535] | ||
| style="text-align:center" | 0-30 V | |||
| style="text-align:center" | 0-3 A | |||
| 90 W | |||
|- | |||
| [[Korad KA3005P]] | |||
| [[Velleman PS3005D]], [[Velleman LABPS3005D]], [http://uk.farnell.com/tenma/72-2540/power-supply-1ch-30v-5a-prog/dp/2445412 Tenma 72-2540], [https://www.distrelec.de/en/bench-top-power-supply-30-programmable-rnd-lab-rnd-320-ka3005p/p/30061864 RND 320-KA3005P] | |||
| style="text-align:center" | 0-30 V | | style="text-align:center" | 0-30 V | ||
| style="text-align:center" | 0-5 A | | style="text-align:center" | 0-5 A | ||
| Line 36: | Line 43: | ||
|- | |- | ||
| | | [http://www.koradtechnology.com/product/16.html Korad KD3005P] | ||
| | | — | ||
| style="text-align:center" | 0-30 V | | style="text-align:center" | 0-30 V | ||
| style="text-align:center" | 0-5 A | | style="text-align:center" | 0-5 A | ||
| 150 W | | 150 W | ||
|- | |||
| [http://www.koradtechnology.com/product/14.html Korad KA3010P] | |||
| — | |||
| style="text-align:center" | 0-30 V | |||
| style="text-align:center" | 0-10 A | |||
| 300 W | |||
|- | |||
| [http://www.koradtechnology.com/product/14.html Korad KA6002P] | |||
| [http://uk.farnell.com/tenma/72-2545/power-supply-1ch-60v-2a-prog/dp/2445413 Tenma 72-2545] | |||
| style="text-align:center" | 0-60 V | |||
| style="text-align:center" | 0-2 A | |||
| 120 W | |||
|- | |||
| [http://www.koradtechnology.com/product/14.html Korad KA6003P] | |||
| [http://uk.farnell.com/tenma/72-2550/power-supply-1ch-60v-3a-prog/dp/2445414 Tenma 72-2550] | |||
| style="text-align:center" | 0-60 V | |||
| style="text-align:center" | 0-3 A | |||
| 180 W | |||
|- | |||
| [http://www.koradtechnology.com/product/14.html Korad KA6005P] | |||
| — | |||
| style="text-align:center" | 0-60 V | |||
| style="text-align:center" | 0-5 A | |||
| 300 W | |||
|- | |||
| [http://www.koradtechnology.com/product/16.html Korad KD6005P] | |||
| — | |||
| style="text-align:center" | 0-60 V | |||
| style="text-align:center" | 0-5 A | |||
| 300 W | |||
|- | |||
| [http://www.stamos-welding.com/mains-adapter-s-ls-31 Stamos S-LS-31] | |||
| — | |||
| style="text-align:center" | 0-30 V | |||
| style="text-align:center" | 0-5 A | |||
| 250 W | |||
|} | |} | ||
'''Note:''' The libsigrok [http://sigrok.org/gitweb/?p=libsigrok.git;a=tree;f=src/hardware/korad-kaxxxxp korad-kaxxxxp] driver needs to know about the device's ID (the response to the '''*IDN?''' command, see below). If you have a device which is not yet [https://sigrok.org/gitweb/?p=libsigrok.git;a=blob;f=src/hardware/korad-kaxxxxp/api.c#l58 listed in the driver], please let us know. | |||
'''Note:''' Some versions of the Velleman PS3005D appear to use the [[Atten PPS3000 series]] protocol instead of the Korad protocol described below. | |||
== Protocol == | == Protocol == | ||
The protocol is serial | The protocol is serial (actual RS232 and serial-over-USB is supported by the devices), 9600/8N1, (almost fully) ASCII based. No line termination, CRC or checksum characters are used. The PC sends a request string which the power supply then responds to. | ||
During a PC connection, the front control buttons and the scrollwheel are blocked. | During a PC connection, the front control buttons and the scrollwheel are blocked. | ||
| Line 58: | Line 111: | ||
|- | |- | ||
| *IDN? | | *IDN? | ||
| | | KORADKA3005PV2.0 | ||
KORADKA3005PV2.0 | | Request identification from device. See also the [https://sigrok.org/gitweb/?p=libsigrok.git;a=blob;f=src/hardware/korad-kaxxxxp/api.c full list of recognized IDs in libsigrok] in the models[] array. | ||
| Request identification from device | |||
|- | |- | ||
| STATUS? | | STATUS? | ||
| (byte) | | (byte) | ||
| Request the actual status. The output is a single byte with the actual status encoded in bits. At least the Velleman PS3005D V2.0 is a bit buggy here. The only reliable bits are: 0x40 (Output mode: 1:on, 0:off), 0x20 (OVP and/or OCP mode: 1:on, 0:off) and 0x01 (CV/CC mode: 1:CV, 0:CC) | | Request the actual status. The output is a single byte with the actual status encoded in bits. At least the Velleman PS3005D V2.0 is a bit buggy here. The only reliable bits are: 0x40 (Output mode: 1:on, 0:off), 0x20 (OVP and/or OCP mode: 1:on, 0:off) and 0x01 (CV/CC mode: 1:CV, 0:CC). | ||
|- | |- | ||
| VSET1? | | VSET1? | ||
| Line 84: | Line 136: | ||
| ISET1? | | ISET1? | ||
| 0.125 | | 0.125 | ||
| Request the current as set by the user. | | Request the current as set by the user. See notes below for a firmware bug related to this command. | ||
|- | |- | ||
| Line 109: | Line 161: | ||
| OVP1 | | OVP1 | ||
| (none) | | (none) | ||
| Enable the "Over Voltage Protection", the PS will switch off the output when the voltage | | Enable the "Over Voltage Protection", the PS will switch off the output when the voltage rises above the actual level. | ||
|- | |- | ||
| Line 119: | Line 171: | ||
| OCP1 | | OCP1 | ||
| (none) | | (none) | ||
| Enable the "Over Current Protection", the PS will switch off the output when the current | | Enable the "Over Current Protection", the PS will switch off the output when the current rises above the actual level. | ||
|- | |- | ||
| Line 129: | Line 181: | ||
| TRACK0 | | TRACK0 | ||
| (none) | | (none) | ||
| Set multichannel mode, 0 independent, 1 series, 2 parallel (from Velleman protocol v1.3 documentation) | | Set multichannel mode, 0 independent, 1 series, 2 parallel (from Velleman protocol v1.3 documentation). | ||
|- | |- | ||
| RCL1 | | RCL1 | ||
| (none) | | (none) | ||
| Recalls voltage and current limits from memory, 1 to 5 | | Recalls voltage and current limits from memory, 1 to 5 (from Velleman protocol v2.0 documentation). | ||
|- | |- | ||
| SAV1 | | SAV1 | ||
| (none) | | (none) | ||
| Saves voltage and current limits to memory, 1 to 5 | | Saves voltage and current limits to memory, 1 to 5 (from Velleman protocol v2.0 documentation). | ||
|} | |} | ||
| Line 146: | Line 198: | ||
# The digit 1 in the V... and I... requests indicates the values are meant for channel one. In future (or "higher"?) models this may be two for a second channel and so on. | # The digit 1 in the V... and I... requests indicates the values are meant for channel one. In future (or "higher"?) models this may be two for a second channel and so on. | ||
# Voltage ("00.00" to "31.00" V) and current ("0.000" to "5.100" A) output values have a fixed length with fixed dot position. The values won't become negative. | # Voltage ("00.00" to "31.00" V) and current ("0.000" to "5.100" A) output values have a fixed length with fixed dot position. The values won't become negative. | ||
# ISET1? replies with a sixth byte on many models (all?) which is the sixth character from *IDN? reply if *IDN? was queried before (during same power cycle). This byte is read and discarded by sigrok. As reported by [https://github.com/kxtells/tenma-serial/issues/2 Jordi Castells / kxtells] this behaviour seems to happen only on protocol version 2.0, but not in 2.1. | |||
== Resources == | == Resources == | ||
Latest revision as of 14:04, 17 September 2022
 | |
| Status | supported |
|---|---|
| Source code | korad-kaxxxxp |
| Channels | 1 |
| Voltage/current (CH1) | various |
| Connectivity | USB/serial, RS232 |
| Features | programmable presets, over voltage protection, over current protection, output on/off |
| Website | koradtechnology.com |
The Korad KAxxxxP series are 1 channel switch-mode programmable power supplies with both USB/serial and RS232 connectivity.
The devices are also sold as rebranded versions by e.g. Velleman, Tenma/Farnell, Stamos, or RND.
Devices
| Device | OEM/Rebranded | Voltage range | Current range | Power |
|---|---|---|---|---|
| Korad KA3003P | Tenma 72-2535 | 0-30 V | 0-3 A | 90 W |
| Korad KA3005P | Velleman PS3005D, Velleman LABPS3005D, Tenma 72-2540, RND 320-KA3005P | 0-30 V | 0-5 A | 150 W |
| Korad KD3005P | — | 0-30 V | 0-5 A | 150 W |
| Korad KA3010P | — | 0-30 V | 0-10 A | 300 W |
| Korad KA6002P | Tenma 72-2545 | 0-60 V | 0-2 A | 120 W |
| Korad KA6003P | Tenma 72-2550 | 0-60 V | 0-3 A | 180 W |
| Korad KA6005P | — | 0-60 V | 0-5 A | 300 W |
| Korad KD6005P | — | 0-60 V | 0-5 A | 300 W |
| Stamos S-LS-31 | — | 0-30 V | 0-5 A | 250 W |
Note: The libsigrok korad-kaxxxxp driver needs to know about the device's ID (the response to the *IDN? command, see below). If you have a device which is not yet listed in the driver, please let us know.
Note: Some versions of the Velleman PS3005D appear to use the Atten PPS3000 series protocol instead of the Korad protocol described below.
Protocol
The protocol is serial (actual RS232 and serial-over-USB is supported by the devices), 9600/8N1, (almost fully) ASCII based. No line termination, CRC or checksum characters are used. The PC sends a request string which the power supply then responds to.
During a PC connection, the front control buttons and the scrollwheel are blocked.
| Request | Example output | Remarks |
|---|---|---|
| *IDN? | KORADKA3005PV2.0 | Request identification from device. See also the full list of recognized IDs in libsigrok in the models[] array. |
| STATUS? | (byte) | Request the actual status. The output is a single byte with the actual status encoded in bits. At least the Velleman PS3005D V2.0 is a bit buggy here. The only reliable bits are: 0x40 (Output mode: 1:on, 0:off), 0x20 (OVP and/or OCP mode: 1:on, 0:off) and 0x01 (CV/CC mode: 1:CV, 0:CC). |
| VSET1? | 12.34 | Request the voltage as set by the user. |
| VSET1:12.34 | (none) | Set the maximum output voltage. |
| VOUT1? | 12.34 | Request the actual voltage output. |
| ISET1? | 0.125 | Request the current as set by the user. See notes below for a firmware bug related to this command. |
| ISET1:0.125 | (none) | Set the maximum output current. |
| IOUT1? | 0.125 | Request the actual output current. |
| OUT1 | (none) | Enable the power output. |
| OUT0 | (none) | Disable the power output. |
| OVP1 | (none) | Enable the "Over Voltage Protection", the PS will switch off the output when the voltage rises above the actual level. |
| OVP0 | (none) | Disable the "Over Voltage Protection". |
| OCP1 | (none) | Enable the "Over Current Protection", the PS will switch off the output when the current rises above the actual level. |
| OCP0 | (none) | Disable the "Over Current Protection". |
| TRACK0 | (none) | Set multichannel mode, 0 independent, 1 series, 2 parallel (from Velleman protocol v1.3 documentation). |
| RCL1 | (none) | Recalls voltage and current limits from memory, 1 to 5 (from Velleman protocol v2.0 documentation). |
| SAV1 | (none) | Saves voltage and current limits to memory, 1 to 5 (from Velleman protocol v2.0 documentation). |
Remarks:
- The digit 1 in the V... and I... requests indicates the values are meant for channel one. In future (or "higher"?) models this may be two for a second channel and so on.
- Voltage ("00.00" to "31.00" V) and current ("0.000" to "5.100" A) output values have a fixed length with fixed dot position. The values won't become negative.
- ISET1? replies with a sixth byte on many models (all?) which is the sixth character from *IDN? reply if *IDN? was queried before (during same power cycle). This byte is read and discarded by sigrok. As reported by Jordi Castells / kxtells this behaviour seems to happen only on protocol version 2.0, but not in 2.1.