Introduction to the function and principle of rectifier grid
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Introduction to the function and principle of rectifier grid

Posted Date: 2024-02-05

The rectifier grid is an electronic component used in the rectifier circuit. Its function is to convert alternating current into direct current. The rectifier grid is usually composed of multiple rectifier diodes. Each rectifier diode has unidirectional conductivity and can only allow current to pass in one direction, thereby converting the positive and negative half cycles of alternating current into direct current in a single direction. Rectifier grids are widely used in various electronic equipment and power supplies to provide stable DC power.

What is the function of the rectifier grid?

Its function is to convert the input AC signal into a unidirectional DC signal.

In devices such as transistors and MOSFETs, the control voltage of the rectifier gate controls the direction of current through the device. When a forward voltage is applied to the rectifier gate, it will conduct, allowing current to flow from the source to the drain, achieving forward current conduction. When a reverse voltage is applied to the rectifier gate, it will cut off, preventing the flow of current and realizing the shutdown of the reverse current.

By controlling the voltage of the rectifier gate, the switching control of the power semiconductor device can be achieved, thereby achieving forward conduction and reverse blocking of current. This makes rectifier grids play a key role in power electronics applications, including rectifiers in AC power supplies, inverters, switching power supplies, etc.

The rectifier gate is used to control the current flow direction of the power semiconductor device by controlling the application of voltage to achieve signal rectification (conversion from AC to DC) and power control.

The working principle of the rectifier gate is mainly based on the unidirectional conductivity of the rectifier diode. The rectifier gate is usually composed of multiple rectifier diodes connected in series or parallel. The anode and cathode of these rectifier diodes are connected together to form a rectifier circuit. When alternating current is input to the rectifier grid, only when the current direction is consistent with the conduction direction of the rectifier diode, the current can be output through the rectifier diode, thereby achieving rectification. The output DC power has a smooth waveform, and its voltage and current values ​​are in one direction.

In practical applications, the rectifier gate is usually used together with a filter circuit to further smooth the output voltage and reduce the ripple effect. The filter circuit can be composed of capacitors, inductors, resistors and other components to absorb and eliminate high-frequency noise, thereby providing a purer and more stable DC power supply.

The rectifier grid converts alternating current into direct current by utilizing the unidirectional conductivity of the rectifier diode. It is widely used in various electronic equipment and power supplies to provide stable DC power for electronic equipment.

Review Editor Huang Fei


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