May 23, 2001
Linear versus Switcher
Question: What is the difference between a linear power supply and a switching-mode power supply?
Original Question: Could you explain and steer me to information regarding the difference between a linear power supply vs. switching? S. B. 05/17/2001
Answer: Dissipative regulators achieve regulation by a purposeful conversion of excessive power to heat, unlike switching-mode power supplies which do not rely on a heat conversion for regulation. Switching-mode power supplies would be 100% efficient if components were ideal. Dissipative regulators convert heat with either a series or a shunt element.
The difference is explained in detail in the first three sections of my Switching-Mode Power Supply Design tutorial.
Posted by Jerrold Foutz at May 23, 2001 02:37 PM