WS157 or WS106 low power micro switching power supply circuit

Shown for the WS157 or WS106 with low power miniature switching power supply. WS157 or WS106 is newly developed in recent years a regulated switching power supply control device, the internal control circuitry and power switches integrated on the same chip,

with PWM control, a variety of detection overcurrent overheating protection function, external only It must be connected to a suitable switching transformer and a few components to work properly. It is made with the characteristics of the power supply directly to the AC mains (220V) is converted into low-voltage direct current, and small size, making simple. WS157 power of 18W, WS106 power is 12W.

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