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Power Supply DP100

ALIENTEK DC Power Supply DP100

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Ref. I found hidden gem on AliExpress. This power supply amazed me.

Specifications

Modle DP100
Input USB Type-C
Output 4.0mm Banana jack
Communication USB - A
Screen 0.96’ 160 x 80 IPS LCD
Dimensions 100.4mm x 62.2mm x 17.2mm
Input Protection REP / UVP
Output Protection OVP / OCP / OPP / OTP / REP
Output Mode CC / CV
Ripple Voltage ≤2mVrms, 10mVp-p
Ripple Current ≤1mArms, 3mAp-p
Setting Resolution(V/C) 10mV / 1mA
Input Voltage DC 5V ~ 32V
Input Current 100mA ~ 5A
Input Voltage DC 00.00 ~ 30.00V
Input Current DC 0.000 ~ 5.000A
Output Power 100W Max
Full Load Efficiency ≤97%（30V, 3.33A）

User manual

Official Download

Unofficial Manual_JP
Manuals.Plus_JP

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① Read back voltage of input, which is power supply voltage, the unit is V.
② Output voltage setting, 00.00~30.00V, resolution 0.01V, unit V.
③ Output constant current setting, 0.000~5.000A, resolution 0.001A, unit A.
④ Output mode, including
- OFF mode,
- Constant Voltage output mode CV,
- Constant Current output mode CC,
in CV mode, the brightness of output LED automatically changes with the voltage,
and CC mode automatically changes with the current.
⑤ USB-A mode, including
- Host mode USBH
- Slave mode USBD.
In host mode, it can output 5V/1A , which can supply power to 5V devices, such as a USB mouse; in slave mode, it is used for communication with the PC and firmware upgrading.。
⑥ Working state, including seven kinds:
- Normal state NM,
- OverVoltage Protection OVP,
- CverCurrent Protection OCP,
- OverPower Protection OPP,
- OverheaT Protection OTP,
- REverseconnection Protection REP(can be set through menu items),
- UnderVoltage Protection UVP.
When it detects other states than the normal state, the device automatically turns off the output and alarms with a buzzer, and it is forbidden to turn on the output in the UVP state.
⑦ The preset output group currently used, the device supports 10 preset groups (0~9), P[0] represents preset group 0, each preset group includes output voltage setting, output constant current setting, overvoltage protection setting, overcurrent protection setting.
⑧ Panel lock state, - gray means not locked,
- it turns orange after locking and operation is invalid, it is automatically locked after connecting to the PC, and can’t be unlocked through panel.
⑨ Device temperature, unit: Celsius (°C).
⑩ Device output power, real-time display of the power value of the device, unit: watt (W).
⑪ Device output current, real-time display the output current value, unit: ampere (A).
⑫ Device output voltage, real-time display the output voltage value, unit: Volt (V)

  • A mode that keeps the output voltage constant.
  • Features:
    • Maintains the set voltage while the current changes according to the load.
    • Used when voltage stability is crucial (e.g., for digital circuits or testing electronic components).
    • Operates as long as the output current does not exceed the set limit.
  • Examples of Use:
    • Powering microcontrollers and sensors.
    • Voltage testing for LEDs or ICs.
  • A mode that keeps the output current constant.
  • Features:
    • Maintains the set current while the voltage changes according to the load.
    • Used when current regulation is important (e.g., for LED driving or battery charging).
    • Operates as long as the output voltage does not exceed the set limit.
  • Examples of Use:
    • Battery charging.
    • Controlling LED current.
    • Motor testing.
  • 出力電圧を一定に保つモード
  • 特徴：
    • 設定した電圧を維持し、負荷の変化に応じて電流が変化
    • 主に電圧が重要な回路（デジタル回路や電子部品のテスト）に使用
    • 電流が設定した制限値を超えない範囲で動作
  • 使用例：
    • マイコン、センサーへの電源供給
    • LEDやICの駆動電圧テスト
  • 出力電流を一定に保つモード
  • 特徴：
    • 設定した電流を維持し、負荷の変化に応じて電圧が変化
    • 主に電流が重要な回路（LED駆動やバッテリー充電）に使用
    • 電圧が設定した制限値を超えない範囲で動作
  • 使用例：
    • バッテリー充電
    • LEDの電流制御
    • モーターの試験

Ref. 定電圧と定電流を理解する