AISIKAI

Jiangsu Aisikai Electric Co.,Ltd.(CE, CCC, ISO9001)

Add.:Chenji Industrial Zone, Yizheng City ,jiangsu Province, China
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Switching power supply transformer fever

Switching power supply transformer is joined the switch tube power transformer, in addition to the ordinary transformer voltage transform function in the circuit, also both insulation isolation and power transfer function commonly used in switching power supply on the occasion of high frequency circuit.


Switching power supply transformer is joined the switch tube power transformer, in addition to the ordinary transformer voltage transform function in the circuit, also both insulation isolation and power transfer function commonly used in switching power supply on the occasion of high frequency circuit.


Switch power supply of the main heating components for the semiconductor switch tube and power diode, high frequency transformer, filtering inductance, etc. Different components have different way to control the heat. Power tube is one of the calorific value larger device in the high frequency switch power supply, reduce its calorific value, not only can improve the reliability of power tube, but also can improve the reliability of switch power supply, improve MTBF.


Switch tube heat is caused by the loss, the wastage of the switch tube by the switching process loss and loss of state of two parts, reduce the loss of state can choose low resistance of the switch tube to reduce the loss of state; Switching process loss is caused by the switching time and the size of gate charge, can reduce the loss of switch process selection switch faster, shorter recovery time to reduce the device. But more important is through the design more optimal control method, and buffer technology to reduce the loss, such as the soft switch technology, can greatly reduce the wear and tear. Reduce the calorific value of the power diode, rectifier on communication and buffer diode, usually don't have a better control technology to reduce wear and tear, can be reduced by selecting high quality diode loss. For transformer secondary side of the rectifier can choose efficient synchronous rectifier technology to reduce the loss. For high frequency magnetic materials caused by the loss, skin effect, to avoid as far as possible to the impact of skin effect, can use more shares and fine enameled wire and the ways to solve.


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    Update time:12/24/2015 10:19:20 AM  【Print this page】  【Close