constant current

  1. I

    Can I use BP2857 constant current LED driver IC with a PWM-controlled MOSFET for dimming and turning the lights on or off with an ESP8266/Arduino?

    I am trying to build a remotely controllable aquarium LED light. I live in a country where DigiKey and Mouser are not a thing. Electronic components are hard or impossible to find in this country. So I'm limited to the parts shown in the schematic. And my skills are not yet adequate for...
  2. 0-30V, 0-7A Adjustable Switching Power Supply [CC-CV plus LED]

    DC to DC buck converters is a famous topology in the electronic and a widely used circuit in electronic devices. A buck converter steps down the input voltage while it increases the output current. In this article/video, I have discussed a DC to DC buck converter that can be used effectively as...
  3. Constant Current Circuit using LM317 1200µA

    Dear fellow technicians, As I wanted to make colloidal silver, just for fun, I tried to make a constant current supply. So my powersupply input is 31,5Vdc, and my desired limited output is aprox. 1000-2400µA. In my test circuit I use a potmeter to limit the current, and a leak resister to get...
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