Single-phase bridge rectifying circuit with controllable filtering voltage
A rectifier circuit and single-phase bridge technology, applied in the field of current rectification, can solve the problems of damage to high-precision components, affecting the working life of devices, and the burden of rectifier diodes, so as to achieve the effect of commission filtering, improve working life, and avoid burden.
Inactive Publication Date: 2020-06-02
XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD
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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
Method used
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Embodiment 1
[0020] An embodiment of the present invention provides a single-phase bridge rectifier circuit with controllable filter voltage, including: a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6 , the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the first diode D1, the second diode D2, the third diode D3, the fourth level tube D4, the fifth level tube D5, the sixth level tube D6, the seventh level tube D7, the eighth level tube D8, the ninth level tube D9, the twelfth level tube D10 , the eleventh diode D11, the twelfth diode D12, the first triode Q1, the second triode Q2, the transformer T1, and the current source I1;
[0021] The negative pole of the first diode D1 is connected to the negative pole of the third diode D3, the positive pole of the second capacitor C2, and the emitter of the first transistor...
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The invention discloses a single-phase bridge rectifying circuit with a controllable filtering voltage. The circuit comprises a first capacitor, a 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 fifth resistor, a sixth resistor, a first diode, a second diode, a third diode, afourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a twelfth diode, an eleventh diode, a twelfth diode, a first triode, a second triode, a transformer and a current source. According to the invention, the diodes, the capacitors and the peripheral resistors form a higher harmonic filter 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 diodeis also avoided, and the service life of a device is prolonged.
Description
technical field [0001] The invention belongs to the field of current rectification, and in particular relates to a single-phase bridge rectification circuit with controllable filtering 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 ord...
Claims
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Login to View More IPC IPC(8): H02M7/06H02M1/12
CPCH02M1/126H02M7/06
Inventor 薛磊张志兵
Owner XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD