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:
Sep. 24, 2019
Filed:
Jan. 09, 2018
Zhongshan Broad-ocean Motor Co., Ltd., Zhongshan, CN;
Wenqing Bian, Zhongshan, CN;
Di Zhang, Zhongshan, CN;
ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD., Zhongshan, CN;
Abstract
A motor controller, including: a microprocessor including a signal identification unit; an inverter circuit; a rotation speed detection circuit; a power module; and an isolation circuit. The power module supplies power for the microprocessor, the inverter circuit, the rotation speed detection circuit, and the isolation circuit. The isolation circuit is connected to the microprocessor via a pulse width modulation (PWM) input line, and a PWM signal is transmitted to the isolation circuit and the microprocessor successively via the PWM input line. One rotation speed input signal of a motor is transmitted to the signal identification unit of the microprocessor via the isolation circuit and the PWM input line. The signal identification unit determines whether an input signal of the PWM input line is the PWM signal or the one rotation speed input signal of the motor.