US Patent No. 9,448,607

IRREGULARITY DETECTION DEVICE FOR A POWER SWITCH


Patent No. 9,448,607
Issue Date September 20, 2016
Title Irregularity Detection Device For A Power Switch
Inventorship Chia-An Yeh, New Taipei (TW)
Assignee Acbel Polytech Inc., New Taipei (TW)

Claim of US Patent No. 9,448,607

1. An irregularity detection device for a power switch, wherein the irregularity detection device is connected to a current
path of a power switch and comprises:
a voltage-dividing circuit having a voltage-dividing node; and
a voltage-controlled switch connected between the voltage-dividing node of the voltage-dividing circuit and the current path
of the power switch;

wherein
when a voltage on the current path of the power switch is less than a first configuration value, the voltage-controlled switch
is turned on for a voltage at the voltage-dividing node to be less than a second configuration value; and

when the voltage on the current path of the power switch is greater than or equal to the first configuration value, the voltage-controlled
switch is turned off for the irregularity detection device to generate an irregularity alarm when the voltage at the voltage-dividing
node is greater than or equal to the second configuration value.