The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2024
Filed:
Jul. 14, 2022
Leap Semiconductor Corp., Taoyuan, TW;
Wei-Fan Chen, Taichung, TW;
Kuo-Chi Tsai, Taoyuan, TW;
LEAP Semiconductor Corp., Taoyuan, TW;
Abstract
A short-circuit protection circuitry is adapted for a power transistor. The short-circuit protection circuitry includes a first diode, a first resistor, a voltage dividing circuit, a gate voltage generator, a pull-down circuit, and a control signal generator. The first diode is coupled to a drain of the power transistor. The first resistor is coupled between the first diode and the power transistor. The voltage dividing circuit is coupled between a gate and a source of the power transistor to generate a dividing voltage. The gate voltage generator provides a gate voltage to the gate of the power transistor according to a first driving signal and a second driving signal. The pull-down circuit pulls down the gate voltage according to a control signal. The control signal generator generates the control signal according to the first driving signal, a voltage on the anode of the first diode and the dividing voltage.