Circuit diagrams and schematics - Electronic projects

This circuit, it works similar to a SCR.When the trigger input is high, The transistor Q2 and Q1 will work,therefore a current flow to the base pin of Q2,it has voltage 0.7 volts at resistor R1. When cutting the activation voltage, the transistors can continue to perform, because the base current.The reset circuit will do [...]

This is a challenge contest circuit sensitivity, in press. Can be played simultaneously by up to 4 people on one hit before, there are bright lights show the number of people who are pressing. When raising the power supply circuit, and switch to either one up.Suppose that the first switch S1, a current will flow [...]

This stop current give battery, when Voltage of battery tall arrive at the level that load with full speed already ahead for protect something charger too much poor distilled dry water. This circuit can is usable very wide can use with battery many model. By choose diode and SCR at can durable the trend loads [...]