Lsolated-converter


Posted on Aug 2, 2012

In this circuit. a negative output voltage de-de converter generates a -5 V output at pin A. In order to generate -5 Vat point A, the primary of the transformer must fly back to a diode drop more negative than -5 V. If the transformer has a tightly coupled 1/1 turns ratio, there will be a 5 V plus a diode drop across the secondary. The 1N5817 rectifies this secondary voltage to generate an isolated 5-V output.


Lsolated-converter
Click here to download the full size of the above Circuit.

The isolated output is not fully regulated since only the -5 V at point A is sensed by the MAX635.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Turn an old PC into a multi-channel pulse generator, for PWM/servo/stepper
Crystal Radio
15 x 7 LED display with PIC16F628
High-input-resistance-dc-voltmeter
Flip-Flop Debouncer Switch
Voltage Doublers
MidiMotor2 Module
Sensor Alarm using thyristor circuit
ELECTRONIC COMBINATION LOCK
Capacitance compensation circuit diagram of a power protection



Top