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NEWS
09
2022-06
The working process of the power adapter
Release time:
2022-06-09
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44
During the saturated conduction period of the switch tube VT, the DC voltage Ui of the positive pole of C1 is charged through L→VT→the positive pole of C2→the negative pole of C2. On the one hand, a DC voltage is established at both ends of C2, and on the other hand, the magnetic energy in the energy storage inductor L is continuously increased. When the switch tube VT is turned off, L induces left negative and right positive voltages, and the magnetic energy in L is released to C2 and the load through the freewheeling diode VD. The level of the voltage Uo at the output end of the power adapter is determined by the length of the saturated conduction time of VT, that is, the width of the base excitation pulse. The width of the base excitation pulse is determined by the error sampling and amplifying circuit.
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2022-06
Self-excited series power adapter
Release time:
2022-06-09
Hits:
41
Among them, VT is the switch tube of the power adapter, which is controlled by the excitation pulse and works in the cut-off and saturation state. C1 is the filter capacitor in the mains voltage rectification filter circuit. VD is a freewheeling diode, and its function is to provide a power supply path for the load when the switch is turned off. L is the energy storage inductance (ie switching transformer). C2 is the filter capacitor at the output end of the power adapter.
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2022-06
Power adapter product use
Release time:
2022-06-09
Hits:
49
Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LEDs Lamps, audio-visual products, security, computer cases, digital products and instruments and other fields.
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An enterprise that integrates and trades various thermal fuses, temperature-controlled switches, resettable fuses and other circuit protection components and produces current fuses
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Shenzhen Weihong Gao Electronic Technology Co., Ltd.
Tel：0755-27429324 / 27135293
Add：Area A, 4th Floor, Building 22, Chuangye Industrial Zone, Shapuwei Community, Songgang Street, Baoan District, Shenzhen
Fax：0755-27429326
E-mail：Rong@szwehong.com
PC：518105
Contact：Miss Zhao +86-13823717740
Mr. Du +86-18823436074
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