Servo loop improves linear-regulator efficiency


Posted on Apr 12, 2012

Linear regulators are easy to implement and have better noise and drift characteristics than switching approaches. Their largest disadvantage is inefficiency: excess energy dissipated as heat. Several well-known techniques are available to minimize the input-to-output voltage across a linear regulator. I had been looking for an inexpensive, easy-to-implement, and efficient preregulator to reduce the dropout voltage of a linear regulator. Closed-loop, self-oscillating preregulators built around a switching transistor, a comparator, and a filter are difficult to predict in terms of frequency.


Servo loop improves linear-regulator efficiency
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Amplifier Timer
Waveform Capture and Control
Milliamp Meter to Voltmeter
M3850A Programmer
Musical Car Reverse Horn Circuit PCB
model RC as USB Joystick
Current sensing of the rails circuit diagram
By BH-SK-1 produced a single bond Touch light switch



Top