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

Negative Ions Detector / Sensor
Audio 10 LED VU meter
Bridge amplifier
Audio operated relay
Optical-ttl-coupler
Allophone-generator
Phase Shifter
Analog circuit enforces slow servo response
EE-8 Field Telephone
Transformerless 5 Volt Power Supply
Signal Meter circuit
LiquidFire Teslacoil Pages
Multimeter AC DC converter circuit diagram automatically



Top