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Device for transforming a primary AC voltage in a lower AC voltage in a lower AC voltage for supplying an electrical load
Device for transforming a primary AC voltage in a lower AC voltage in a lower AC voltage for supplying an electrical load
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机译:用于将初级交流电压转换成较低交流电压的装置,以将较低交流电压转换成用于提供电负载的装置
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摘要
A device for transforming an AC voltage to a lower AC voltage includes a generator of a PWM control signal and a first bidirectional switch to couple a load to the AC voltage during a conduction-phase. A second bidirectional switch discharges energy from the load during an off-phase of the first bidirectional switch. A first driving circuit of the first bidirectional switch is input with the PWM control signal and generates a first PWM signal, applied between control and conduction terminals of the first bidirectional switch. A second driving circuit for the second bidirectional switch is input with the PWM control signal and generates a second PWM signal, in phase opposition to the first PWM signal, applied between control and conduction terminals of the second bidirectional switch. An electric decoupling circuit is between the generator and second driving circuit. A transformer is between respective conduction terminals of the bidirectional switches.
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