Here is a very good project from Thorsten Singer, he made this Battery Powered PSU (0-20V, 0-2A) (BPPSU) with case, you can see the details from here: https://www.instructables.com/id/Battery-Powered-PSU-0-20V-0-2A-BPPSU/?ALLSTEPS
Product Information:
The constant voltage and constant current programmable control power supply module is cabinet and delicate, and it put the collection of analog integration and digital control functions in one.
Its adjustable output voltage range is 0-20.0V, step by 0.1V.
Its adjustable output current range is 0-2.00A, step by 0.01A.
Boot voltages can be stored freely and the model has two groups of quick storage voltage.
Compared with the traditional analog power supply, it is more convenient to quickly extract the voltage or current required.
LCD display on the model has the function digital voltmeter and ammeter.
You can view the preset voltage, input voltage, output voltage, the preset current, output current, output power and LCD brightness.
If you need the housing of this power supply,please click here !
Technical parameters:
Weight: 59g/piece
Dimension: 79 x 42 x 26mm (L x W x H)
Open size: 71 x 39mm
Input positive: IN+
Input negative: IN-
Output current: 0-2.00A
Output power: Maximum 40W
Output positive: OUT+
Output negative: OUT-
Ripple frequency: About 330 KHz
Input voltage range: 4.5-23V(23V is the limiting highest voltage. When you use it, make sure input voltage below 23V)
Output voltage range: 0V-20.0V (In step down voltage mode, input voltage must be higher than 3V), the control button can fast draw up 2 sets data.
Ripple peak to peak value: 50mv (typical value)
More details:
| Item | DP20V2A | DP30V3A | DP50V2A | DP50V5A | DPS3003 | DPS3005 | DPS5005 | DPS3012 | DPS5015 |
| Product ID | This one | 993033 | 1050062 | 1050061 | 1062475 | 1062474 | 1062473 | 1065235 | 1072236 |
| Difference between DP,DPS and DPH | 1. DPS series are updated version. Panel is different. In DPS series, we change the M1/↑and M2/↓ into V/↑and A/↓. You can press those buttons set the voltage and current fast. We add a new function “set default boot open or close output” Others are not changed. 2. DPS5005 and DP50V5A can charge the battery directly, don't need diode. When charging battery, don’t connect battery polarity reversely, otherwise, power parts will bunt. Find the difference between DPS and DP see this video https://www.youtube.com/watch?v=ptt931rrXo8 3, DP power supply and DPS power supply are all buck (step-down) converter. But DPH3205 is buck-boost (step-down and step-up )converter. 4, DPS3005-C and DPS5005-c are communication version. You can connect PC and use upper computer |
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| Communication function | No | No | No | No | No | No | No | No | No |
| Working mode | Buck mode | Buck mode | Buck mode | Buck mode | Buck mode | Buck mode | Buck mode | Buck mode | Buck mode |
| Input voltage | 4.5-23V | 6-35V | 6-55V | 6-55V | 6-40V | 6-40V | 6-55V | 6-40V | 6-60V |
| Output voltage | 0-20.0V | 0-32.0V | 0-50.00V | 0-50.00V | 0.00-32.00V | 0.00-32.00V | 0.00-50.00V | 0.00-32.00V | 0.00-50.00V |
| Output current | 0-2.00A | 0-3.10A | 0-2.000A | 0-5.000A | 0-3.000A | 0-5.000A | 0-5.000A | 0-12.00A | 0-15.00A |
| Output power | 0-40W | 0-99W | 0-100W | 0-250W | 0-96W | 0-160W | 0-250W | 0-384W | 0-750W |
| Voltage resolution | 0.1V | 0.1V | 0.01V | 0.01V | 0.01V | 0.01V | 0.01V | 0.01V | 0.01V |
| Current resolution | 0.01A | 0.01A | 0.001A | 0.001A | 0.001A | 0.001A | 0.001A | 0.01A | 0.01A |
| Product size | 79*34*26mm | 79*34*26mm | 79*34*48 mm |
79*34*48 mm |
79*43*41 mm |
79*43*48 mm |
79*43*48 mm |
79*43*48mm (display ) 93*71*41mm (power) |
79*43*48mm (display ) 93*71*41mm (power) |
| screen | LCD | LCD | Color LCD | Color LCD | Color LCD | Color LCD | Color LCD | Color LCD | Color LCD |
| Fan | NO (don’t need) | YES | YES | NO (don’t need) | NO (don’t need) | NO (don’t need) | NO (don’t need) | YES | YES |
| Charge the battery | NO | NO | NO | Yes | Yes | Yes | Yes | Yes | Yes |
| Function | Preset output voltage / current Power down storage Store shortcut storage value Exact shortcut storage value Adjust LCD brightness Open or close output 2 data groups Preset output voltage / current Power down storage Store shortcut storage value Exact shortcut storage value Adjust LCD brightness Open or close output 2 data groups |
Preset output voltage / current(in two places by SET KEY) Preset protection value 6 running status icons Key lock Data setting and store the specified data group Store shortcut storage value Exact shortcut M1 or M2 or specified data group Adjust LCD brightness Open or close output 10 data groups |
Preset output voltage / current(in two places, by V,A button and SET KEY) Preset protection value 6 running status icons Key lock Data setting and store the specified data group Store shortcut storage value Exact shortcut M1 or M2 or specified data group Adjust LCD brightness Open or close output 10 data groups Set default boot open or close output |
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1 x DP20V2A Power Supply Module
