Switch electric power apparatus
A switching power supply, switching tube technology, applied in emergency protection circuit devices, output power conversion devices, electrical components and other directions, can solve the problems of poor circuit stability, complex circuits, and high costs
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[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following description will help those skilled in the art better understand other advantages, objectives and features of the present invention.
[0021] At first introduce the first embodiment of the device of the present invention, refer to figure 1 . figure 1 The switching power supply device 1 shown is used to drive the load with high-frequency AC, and the high-frequency AC driving process uses a resonant circuit; the device 1 mainly includes: a transformer 13, a capacitor 14, a switch tube 12, and a pulse circuit 11. In this way, in the switching power supply device 1, under the action of the pulse circuit 11, the switch tube 12 performs on and off actions (that is, the switch tube is turned on and off). When the switch tube 12 is turned on, the The primary side of the transformer 13 is connected to the input DC power supply, and at th...
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