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Diodes - Rectifiers - Single

The S12GR is a single-phase silicon bridge rectifier, designed with high efficiency and low power loss in mind. It is used for power supply and motor control in home appliances such as microwave ovens, washing machines, and air conditioners.

Application Field

The S12GR can handle rectification from 115V to 250V and still maintain its efficiency and low power loss. This makes it an ideal choice for rectifying the AC power (110/220V) from the local power grid, for powering low-voltage DC circuits, and for motor control applications.

Working Principle

The S12GR is a four-terminal, silicon bridge rectifier. It consists of four individual silicon diodes arranged in a bridge configuration. The two AC input terminals are connected to the two end terminals while the two center terminals carry the output DC current. When an AC input voltage is applied, the four diodes alternate between conducting and non-conducting states, allowing positive and negative pulses of current to be rectified into DC output.

The two end terminals are reverse-biased while the two center terminals carry the resulting DC output. When the two center terminals carry the same voltage, the S12GR is considered to be in a “steady-state.” This means that the load connected to the rectifier does not need to switch, allowing for steady and efficient current.

Conclusion

The S12GR bridge rectifier is a highly efficient power rectifying device. It is capable of handling a wide voltage range with minimal power loss and is ideal for powering low-voltage DC circuits and motor control applications. The S12GR’s four individual silicon diodes are arranged in a bridge configuration, allowing an AC input voltage to be rectified into DC output. When the two center terminals carry the same DC voltage, the S12GR is considered to be in a steady-state and will provide steady, efficient current.

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