How does a switching mode power supply work, how does a MOSFET work, why is it used instead of other types of transistors, and why are SMPS more efficient than linear power
![Switch power supply start-up circuit with the MOSFET - Power_Supply_Circuit - Circuit Diagram - SeekIC.com Switch power supply start-up circuit with the MOSFET - Power_Supply_Circuit - Circuit Diagram - SeekIC.com](http://www.seekic.com/uploadfile/ic-circuit/201162215125980.jpg)
Switch power supply start-up circuit with the MOSFET - Power_Supply_Circuit - Circuit Diagram - SeekIC.com
![pcb - How to properly switch between two power sources with a MOSFET? - Electrical Engineering Stack Exchange pcb - How to properly switch between two power sources with a MOSFET? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/EzEJC.png)
pcb - How to properly switch between two power sources with a MOSFET? - Electrical Engineering Stack Exchange
![Power supply ON/OFF control and reverse connection protecting circuit (N-ch method) | Toshiba Electronic Devices & Storage Corporation | Europe(EMEA) Power supply ON/OFF control and reverse connection protecting circuit (N-ch method) | Toshiba Electronic Devices & Storage Corporation | Europe(EMEA)](https://toshiba.semicon-storage.com/content/dam/toshiba-ss-v3/master/en/semiconductor/application/automotive-hvac/power-supply-on-off-control-and-reverse-connection-protecting-circuit-n-ch-method_system-block-diagram_1_en.png)
Power supply ON/OFF control and reverse connection protecting circuit (N-ch method) | Toshiba Electronic Devices & Storage Corporation | Europe(EMEA)
![How to Select a MOSFET – Switch Mode Power Supply - Power management - Technical articles - TI E2E support forums How to Select a MOSFET – Switch Mode Power Supply - Power management - Technical articles - TI E2E support forums](https://e2e.ti.com/cfs-file/__key/communityserver-blogs-components-weblogfiles/00-00-00-03-59/5850.fig2.png)
How to Select a MOSFET – Switch Mode Power Supply - Power management - Technical articles - TI E2E support forums
Schematic diagram of 4T analog MOS control HVHF plasma switching power... | Download Scientific Diagram
![Push Button ON-OFF Soft Latch Circuits, Battery Powered Touch Toggle ON OFF Switch, Momentary Button MOSFET Power Switch for Microcontrollers Push Button ON-OFF Soft Latch Circuits, Battery Powered Touch Toggle ON OFF Switch, Momentary Button MOSFET Power Switch for Microcontrollers](http://www.mosaic-industries.com/embedded-systems/_media/microcontroller-projects/electronic-circuits/push-button-switch-turn-on/in-rush-limited-high-voltage-push-button-on-off-toggle-power-switch-circuit.png)