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A Circuit for Improving Conduction Angle of Rectifier Bridge Stack

A technology of rectifier circuit and rectifier bridge stack, which is applied in the direction of converting irreversible AC power input into DC power output, etc., which can solve the problems of unfavorable tube life and large impact current, and achieve strong practicability, prolong service life, and reduce impact The effect of current

Active Publication Date: 2017-10-10
HISENSE HOME APPLIANCES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a large inrush current flows through the rectifier diode, which is detrimental to the life of the tube

Method used

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  • A Circuit for Improving Conduction Angle of Rectifier Bridge Stack
  • A Circuit for Improving Conduction Angle of Rectifier Bridge Stack
  • A Circuit for Improving Conduction Angle of Rectifier Bridge Stack

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with specific facts.

[0017] Such as Figure 1 to Figure 3 Shown is the embodiment of the circuit for improving the conduction angle of the rectifier bridge pile in the present invention, including a first rectifier circuit and a second rectifier circuit, and is characterized in that an adjustment circuit is set between the first rectification circuit and the second rectification circuit, and the adjustment circuit They are respectively electrically connected to the first rectification circuit and the second rectification circuit.

[0018] In this embodiment, the first rectifier circuit is composed of four rectifier diodes D1, D2, D3, and D4. The mains power is connected to the anode of diode D1 and the cathode of diode D2 after passing through the PFC reactor, and the cathode of diode D1 is connected to diode D3. The cathode of the diode D2 is connected to the anode of the diode D4, the anode of the...

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Abstract

The present invention relates to the technical field of rectification circuits and capacitor filter circuits in AC-DC conversion, in particular to a circuit for improving the conduction angle of a rectifier bridge stack, including a first rectification circuit and a second rectification circuit, characterized in that the first rectification circuit An adjustment circuit is arranged between the circuit and the second sorting circuit, and the adjustment circuit is electrically connected to the first rectification circuit and the second rectification circuit respectively. The circuit in this scheme adds an adjustment circuit between the original independent two-way rectification circuit to increase the conduction time of the diode in the original rectification circuit, thereby increasing the conduction angle to reduce the inrush current, thereby prolonging the diode's life. service life. The circuit for improving the conduction angle of the rectifier bridge pile increases the conduction time of the rectifier diode in the capacitor filter circuit, increases the conduction angle, and thus prolongs the service life of the diode.

Description

technical field [0001] The invention relates to the technical field of a rectifier circuit and a capacitor filter circuit in AC-DC conversion, in particular to a circuit for improving the conduction angle of a rectifier bridge stack. Background technique [0002] Capacitor filter circuit is simple in structure, easy to use, and widely used, but its pulsation component is relatively large. Although the rectifier circuit can convert alternating current into direct current, it is not suitable for some places that require smooth direct current. It is necessary to add a filter circuit to reduce rectification The pulsating component in the latter direct current. [0003] The DC component of the filtered output voltage is increased, while the pulsating component is reduced. This is due to the energy storage effect of the capacitor, which causes the capacitor to discharge (release energy to the load) when the diode is turned on (energy storage) and cut off. The average value of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/06
Inventor 任艳芳王斌吕根贵
Owner HISENSE HOME APPLIANCES GRP CO LTD
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