Constant Current Control PCB/Kit
This board makes it quite easy to build an analog current regulator.
The circuit board measures 50mm x 50mm.
Whether you set the reference value with the potentiometer R5 (jumpers W1-2-3) or via PWM (jumpers 1-2)
is entirely up to the user. It is designed for LED control, such as display backlighting.
Resistor R8 can also be connected externally for experimental purposes (PP7 and PP8).
The calculation for resistor R8 is shown in the circuit diagram. The Vref voltage can be set using the voltage divider R4/R7.
A Vref voltage of approximately 1V is usually sufficient.
Both kits include the original circuit diagrams with values and a parts list.
All components are included in the kit: circuit board, socket, heatsink, resistors, capacitors, transistor, reference element, and solder lugs.
The kits are designed for a control current of approximately 140mA.
Variant CCC V1 2.5V.pdf
Variant CCC V1 1.22V.pdf
The circuit board measures 50mm x 50mm.
Whether you set the reference value with the potentiometer R5 (jumpers W1-2-3) or via PWM (jumpers 1-2)
is entirely up to the user. It is designed for LED control, such as display backlighting.
Resistor R8 can also be connected externally for experimental purposes (PP7 and PP8).
The calculation for resistor R8 is shown in the circuit diagram. The Vref voltage can be set using the voltage divider R4/R7.
A Vref voltage of approximately 1V is usually sufficient.
Both kits include the original circuit diagrams with values and a parts list.
All components are included in the kit: circuit board, socket, heatsink, resistors, capacitors, transistor, reference element, and solder lugs.
The kits are designed for a control current of approximately 140mA.
Variant CCC V1 2.5V.pdf Variant CCC V1 1.22V.pdf