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Rectifying and filtering circuit using parallel diodes

A technology of rectifying and filtering circuits and diodes, which is applied in the field of power supplies, can solve the problems of large output current, unbearable, and limited current flow capacity of a single diode, and achieve the effect of large output and increased flow capacity

Inactive Publication Date: 2015-06-03
XIAN GUOLONG BAMBOO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At the output end of the transformer, a diode and LC are generally used to rectify and filter together to convert it into DC. However, the current flow capacity of a single diode is limited and cannot withstand a large output current.

Method used

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  • Rectifying and filtering circuit using parallel diodes

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Embodiment Construction

[0008] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0009] Such as figure 1 As shown, a rectifying and filtering circuit using parallel diodes is characterized in that it includes a diode D1 and a diode D2, the anode of the diode D1 and the anode of the diode D2 are both connected to the output terminal of the transformer T1, and the cathode of the diode D1 and the cathode of the diode D2 Both are connected to one end of the inductor L1, and the other end of the inductor L1 is grounded through the capacitor C1.

[0010] In the present invention, when the transformer outputs a positive voltage, D1 and D2 are turned on to charge L1 and C1, and Vout maintains a high level. When D1 and D2 are cut off, L1 continues to flow, and C1 discharges to the outside, keeping Vout level constant. To achieve the role of rectification filter.

[0011] It can be seen that the parallel connection of D1 and D2 can ...

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Abstract

The invention discloses a rectifying and filtering circuit using parallel diodes. The rectifying and filtering circuit is characterized by comprising a diode D1 and a diode D2, wherein a positive pole of the diode D1 and a positive pole of the diode D2 are connected to an output end of a transformer T1; a negative pole of the diode D1 and a negative pole of the diode D2 are connected to one end of an inductor L1; the other end of the inductor L1 is grounded through a capacitor C1. Through the adoption of the parallel diodes, the through-current capability is improved, so that the rectifying and filtering circuit can provide higher output.

Description

technical field [0001] The invention belongs to the technical field of power supplies, in particular to a rectifying and filtering circuit using parallel diodes. Background technique [0002] At the output end of the transformer, a diode and LC are generally used for rectification and filtering to convert it into DC. However, the current flow capacity of a single diode is limited and cannot withstand a large output current. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a rectifying and filtering circuit using parallel diodes to convert the AC output from the transformer into a DC output, which is suitable for outputting large currents. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A rectifying and filtering circuit using parallel diodes, characterized in that it includes a diode D1 and a diode D2...

Claims

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Application Information

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IPC IPC(8): H02M7/08
CPCH02M7/08
Inventor 沈建荣
Owner XIAN GUOLONG BAMBOO TECH