Free Simple Circuit Diagram
Using the following PMOS FET switch regulator output, in series with the regulator’s load as shown in the picture below is the most simple method. Switch placement should really be noted. To ensure that the regulator remains stable, the switch should be placed after regulators required minimum output capacitance (ie, C3). After regulators suddenly lit, FET Q1 operates as a […]
Read more
This is digital voltage selection control circuit. This circuit uses L200 Regulator. It can be used to regulated the output voltage digitally. Here is the circuit : A combination of P2, R3, R2, and R1 with R5 form voltage divider that determine the output voltage. The transistor is used to switched off this circuit. The output voltage does not exceed […]
Read more
This is a programmable current and voltage regulator circuit. It consist of a voltage regulator with external current limitation. The variable resistor R2 is forced by a constant current because of the fixed voltage of 2.77 V at the terminals of R1. The voltage at pin 2 and the output voltage are varied, if R2 is varied. Here is the […]
Read more
This is a circuit that can provide -12 V negative supply from positive supply. The output voltage is Vo= -Vin· D/(1-D). The maximum output current is Iout=1·(1-D). Here is the circuit : In this circuit, the ground of U1 is connected to negative output voltage. The input voltage of U1 must be lower than maximum operating input voltage, 36V, because […]
Read more