Regulated Charge Pump

Posted on Oct 30, 2012

The dc-dc converter substitutes a voltage tripler in place of the external inductor and the diode that`s typically as

Regulated Charge Pump
Click here to download the full size of the above Circuit.

sociated with the switching regulator, IC1. Inverting and noninverting amplifiers in the MOS-FET-driver (IC2) activate a diode-capacitor tripling network (D1 through D3, CI through C3). A 50-kHz oscillator residing within IC1 produces the EXT signal (pin 6), IC2 converts this signal into drive signals (180° out of phase) for the tripler. The resulting charge-discharge action in the capacitors recharges C3 toward 10 V every 20 The ferrite bead limits output ripple to about 20-mVpp for a 50-mA load. Conversion efficiency is about 70% for the 5-V input, 10-V output configuration.

Leave Comment

characters left:

New Circuits



Popular Circuits

300 Watt MOSFET Broadband Amplifier Using MRF141G
Alarm LED Light Circuit
Light circuit diagram: Electromagnetic Sensor Circuit Using 741 IC
Application Of Uart In Gps Navigation System
MOSFET + Relay to Control a Motor
MAX8844 lithium ion charger electronic circuit design
1.8MHz AM transmitter and receiver
early GEC transistor radio
Diode Charge Pump AM-FM Demodulators
UGN-3501T counter circuit diagram of a Hall sensor
Stairs Corridor light-controlled circuit