Switching-Mode Power Supply Design Tutorial; Part 2: Simple Dissipative Power Supply Topologies
by Jerrold Foutz, SMPS Technology, Oct 07 2007
Focus:
To help readers understand why switching power supplies are needed, Part 2 of this tutorial discusses two non-switching power supply topologies. These are simple dissipative circuits that can be used for dc-dc conversion. The specific examples step down 12 V to 5 V at 20 A max. Simplified circuits for series and shunt regulators are presented, their operation is described, and their low efficiency is explained.
What you’ll learn:
- How to understand operation of shunt and series voltage regulators
Notes:
This section is Part 2 of 3. For a description of Parts 1 and 3, see the How2Power Design Guide under "Power Supply Function" and "DC-DC Converters."
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