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US 9,960,706 B1Granted
Synchronization rectification device
AssigneeMean Well (Guangzhou) Electronics Co., Ltd.
InventorsChih Hsiang Chiu, Ching-Min Chuang
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AssigneeMean Well (Guangzhou) Electronics Co., Ltd.
InventorsChih Hsiang Chiu, Ching-Min Chuang
Estimating the term…
A synchronization rectification device is connected with a secondary side of a transformer of a power supply and an output capacitor. The synchronization rectification device includes a rectification switch, a voltage-controlled switch module and a rectification controller. The rectification switch is connected between the secondary side and the output capacitor. The voltage-controlled switch module connected with the secondary side has a voltage-division capacitor and receives a secondary voltage generated by the secondary side. The rectification controller is connected with the rectification switch and the voltage-controlled switch module. When the secondary voltage rises to a switching voltage value below a first voltage value, the rectification controller controls the rectification switch to be turned off. After the rectification switch is turned off, the voltage-controlled switch module is turned off, and the voltage-division capacitor receives the secondary voltage.
A synchronization rectification device connected with a secondary side of a transformer of a power supply and an output capacitor, and said synchronization rectification device comprises:
Dependencies are inferred from the claim text.