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

Honda Motorcycle CB750F Wiring Diagram
potentiometer Making an adjustable resistance
12 led vu meter circuit
cool chip lt1970 power op amp with current limit
Advanced Simulation for ESD Protection Elements
A S/PDIF Free Space Digital Audio Optical Link
18 dB LT1253 DDS Amplifier
Operational Amplifier Video Tutorial and super microphone circuit with LM324
Automatic light control circuit curtains
IC audio power amplifier circuit