Figure the top is a Safe constant-current source circuit, how it works? A cmos op-amp (number ICL 7611) controls the input current through a P-channel Hexfet power transistor (No. IRF 9520), then to keep up a constant voltage across the R1. As they are connected in a serial form, so use the together current by: [...]
This circuit will show the performance of the equipment,or Check the fuse in the circuit.The circuit is small and the power supply voltage of all kinds. It display with LED, 2-color in one. Which is cathode common kind,the anode has two separate terminals. If the circuit is functioning properly LED, it shown in green colour.The [...]
This circuit is maintain a constant voltage, the output voltage is adjustable.Serves to reduce the input voltage, and keep the voltage constant. The Q1 is the amplifier model. common-emitter. This causes the voltage across the collector’s pin with the ground.Is equal to the voltage between the legs to the ground base of Q1. The volt [...]
Entries (RSS)
Link electronics
Copyright © 2010. All rights reserved. Any circuit and content represented are property of owner.