T&L Publications

Would someone please send me a circuit schematic that will convert 120VAC to 12VDC. I would like the 12VDC to simulate the same 12VDC we get from car cigarette lighters. (It can be that crude). I'll be using the circuit to power the same type of adapters such as cell phones and cd players that we pl...

Does anyone know whether or not a car charger for a cell phone contain circuitry to regulate it's input?<p>If not, is the voltage then regulated by the car voltage regulator? Or when the cell phone is charged, does the demand for current go away?<p>Much appreciated.<p>tony tnissen@ocf.berkeley.edu