Control unit of active bridge rectifier circuit and rectifier device
A bridge rectifier circuit and control unit technology, applied in the circuit field, can solve problems such as limitations of control lines, and achieve the effect of improving flexibility
Inactive Publication Date: 2021-03-30
CHINA GREATWALL TECH GRP CO LTD
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Problems solved by technology
[0004] The purpose of this application is to provide a control unit and a rectifier device for an active bridge rectifier circuit, aiming to solve the problem of limitations in the control circuit of the traditional active bridge rectifier circuit
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[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0046] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0047] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specify...
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The invention relates to the technical field of circuits, and provides a control unit of an active bridge rectifier circuit and the rectifier circuit. In the control unit of the active bridge rectifier circuit, the detection clamping circuit can respectively input corresponding driving signals to the first driver according to the characteristics of various voltage signals during input, and the first driver can respectively input accurate control signals to the corresponding driving ends of the active bridge rectifier circuit according to the received driving signals, and input a correspondingdriving signal to the second driver, so that the second driver inputs an accurate control signal to the corresponding driving end of the active bridge rectifier circuit at the same time, all loops ofthe active bridge rectifier circuit can be conducted orderly under the control of the control unit, and various accessed voltage signals are rectified correspondingly. The corresponding rectifying device can be suitable for various voltage signal power supply scenes, and the flexibility of the rectifying device is effectively improved.
Description
technical field [0001] The application belongs to the field of circuit technology, and in particular relates to a control unit and a rectification device of an active bridge rectification circuit. Background technique [0002] With the increasing efficiency requirements of switching power supplies, the use of figure 1 The traditional diode rectification shown in the figure has become a bottleneck restricting the improvement of power supply efficiency due to its large forward conduction loss. Everyone has always hoped to use MOSFETs (Metal-Oxide Semiconductor Field Effect Transistors) to replace traditional diodes for rectification. The forward conduction loss of the diode is greatly reduced, but since the MOSFET is used to replace the traditional diode for rectification, it is necessary to ensure that the four MOSFETs can be turned on in time when the current flows in the forward direction, and can be turned off in time when there is a reverse current. Only in this way can ...
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Login to View More IPC IPC(8): H02M7/219H02M1/088H02M1/38
CPCH02M1/088H02M1/38H02M7/219
Inventor 钟大兴兰勇
Owner CHINA GREATWALL TECH GRP CO LTD