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Switching power supply concepts

Switching power supply is the use of modern power electronics, control switch turn-on and turn-off time ratio, maintain a stable output voltage of a power supply, switching power supply pulse-width modulation (PWM) control of IC and MOSFET components. Switching power supply and linear power compared to their cost increases with increase in power output, but the growth rate is different. Linear power supply costs in a power point, but higher than the switching power supply, this is called the cost of turning points. With the development of power electronics technology and innovation makes switching power supply technology is in constant innovation, the reversal points increasingly to low cost power shift, for switching power supplies provides a broad space for development.

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