3.3V lithium-cell supply requires one inductor


Posted on Apr 16, 2012

This converter also requires either a transformer or two inductors in place of the single inductor that most dc/dc converters require. You might overlook an alternative approach because the converter uses a linear regulator and takes an efficiency hit when you fully charge the Li-ion battery to about 4.2V (Figure 1).



Nevertheless, this approach offers a longer battery life than the other two buck/boost circuits . For a large portion of the Li-ion battery`s discharge cycle, battery voltage is within a range that allows the converter to exhibit excellent efficiency




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Phase detector with 10-bit accuracy
Switching-regulator
wien bridge sine wave oscillator circuit using lm107
voltage Serial and parallel circuits and power
ancient baudot teletype interface
Current sense schematic question
Class A amp circuit
Ultrasonic remote control switch circuit diagram
CS9482 holiday lights ASIC



Top