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2. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Comparison of a linear power supply and a switched-mode power supply Linear power supply Switching power supply Notes Size and weight: 0.12 W/cm 3, 88 W/kg [28] Smaller than linear power supply. Compared to linear, a SMPS that is 20 kHz is 1/4, 100–200 kHz is 1/8, and 200 kHz–1 MHz types can be even smaller. [28]: 5–8

3. Switch mode power supply - Wikipedia

   en.wikipedia.org/?title=Switch_mode_power_supply&...

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Switch_mode_power_supply&oldid=647350832"

4. Power semiconductor device - Wikipedia

   en.wikipedia.org/wiki/Power_semiconductor_device

   The power MOSFET is the most common power device in the world, due to its low gate drive power, fast switching speed, and advanced paralleling capability. [16] It has a wide range of power electronic applications, such as portable information appliances , power integrated circuits, cell phones , notebook computers , and the communications ...

5. Buck converter - Wikipedia

   en.wikipedia.org/wiki/Buck_converter

   Switch-Mode Power Supply Tutorial - Detailed article on DC-DC converters which gives a more formal and detailed analysis of the Buck including the effects of non-ideal switching (but, note that the diagram of the buck-boost converter fails to account for the inversion of the polarity of the voltage between input and output).

6. Boost converter - Wikipedia

   en.wikipedia.org/wiki/Boost_converter

   For high efficiency, the switched-mode power supply (SMPS) switch must turn on and off quickly and have low losses. The advent of a commercial semiconductor switch in the 1950s represented a major milestone that made SMPSs such as the boost converter possible. The major DC to DC converters were developed in the early 1960s when semiconductor ...

7. Bootstrapping (electronics) - Wikipedia

   en.wikipedia.org/wiki/Bootstrapping_(electronics)

   In switch-mode power supplies, the control circuits are powered from the output. To start the power supply, a leakage resistance can be used to trickle-charge the supply rail for the control circuit to start it oscillating. This approach is less costly and simpler than providing a separate linear power supply just to start the regulator circuit ...