US 12,267,034 B2
Pulse width modulation signal synthesis for a motor controller
Suixiang Deng, Zhuhai (CN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 16, 2022, as Appl. No. 17/841,750.
Claims priority of provisional application 63/315,691, filed on Mar. 2, 2022.
Prior Publication US 2023/0283218 A1, Sep. 7, 2023
Int. Cl. H02P 27/08 (2006.01); H02M 7/5395 (2006.01)
CPC H02P 27/085 (2013.01) [H02M 7/5395 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An integrated circuit (IC), comprising:
a pulse width modulation (PWM) generator configured to generate a first PWM signal;
a first counter having a first control input and a first reset input, the first control input configured to receive the first PWM signal, and the first reset input configured to receive a logical inverse of the first PWM signal, the first counter having a first counter output;
a second counter having a second control input and a second reset input, the second control input configured to receive the logical inverse of the first PWM signal, and the second reset input configured to receive the first PWM signal, the second counter having a second counter output;
a first logic circuit having a first logic circuit input and a second logic circuit input, the first logic circuit input coupled to the first counter output, and the second logic circuit input configured to receive the first PWM signal, the first logic circuit having a first logic circuit output configured to provide a second PWM signal; and
a second logic circuit having a third logic circuit input and a fourth logic circuit input, the third logic circuit input coupled to the second counter output, and the fourth logic circuit input configured to receive the logical inverse of the first PWM signal, the second logic circuit having a second logic circuit output configured to provide a third PWM signal.