This small automotive NiCad battery charger uses only passive components and has the number of diodes given by the desired voltage at maximum charge. The circuit has a charge indicator in the form of an LED.
This circuit uses a JFET at the input to increase the impedance, and is temperature compensated...
This configuration enables the use of low current switches or sensors to control high power loads...
Static charges in objects Dan be detected by this sensitive electroscope. The meter indicates when the...