Tap type rectifying circuit with controllable filtering voltage

Abstract

The invention discloses a tap type rectifying circuit with a controllable filtering voltage. The circuit comprises a first capacitor, second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a twelfth diode, a first triode, a second triode, a transformer and a current source. According to the tap type rectifying circuit, the diodes, the capacitors and the peripheral resistors are adopted to form a higher harmonic filtering circuit, and higher harmonics generated by the transformer can be effectively filtered at the input end, so that the influence of clutter current on a load can be avoided under the condition of not adjusting a load end circuit, the additional burden on a rectifier diode is also avoided, and the service life of a deviceis prolonged.

Description

technical field [0001] The invention belongs to the field of current rectification, and in particular relates to a tapped rectification circuit with controllable filter voltage. Background technique [0002] With the upgrading of electronic products, power supply has always been a short board that limits the development of electronic products. Power supply needs to collect electric energy. However, in an implementation of the rectifier circuit of the existing energy collection module, due to the current input to the transformer due to The mutual inductance phenomenon will generate high-order harmonics, which will cause the current output to the load to jitter after rectification, which will definitely damage the normal operation of some high-precision components with high requirements, and will also damage the rectifier diode during rectification. Causes additional burden and affects the working life of the device. Contents of the invention [0003] In order to solve the ...

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Problems solved by technology

[0002] With the upgrading of electronic products, power supply has always been a short board that limits the development of electronic products. Power supply needs to collect electric energy. However, in an implementation of the rectifier circuit of the existing energy collection module, due to the current input to the transformer due to The mutual inductance phenomenon will generate high-order harmonics, which will cause the current output to the load to jitter after rectification, which will definitely damage the normal operation of some high-precision components with high requirements, and will also damage the rectifier diode during rectification. Causes additional burden and affects the working life of the device

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