Electrical computers and digital data processing systems: input/ – Intrasystem connection
Patent
1998-02-04
2000-02-08
Auve, Glenn A.
Electrical computers and digital data processing systems: input/
Intrasystem connection
327175, H03K 3017
Patent
active
060237414
ABSTRACT:
In a pulse width modulation (PWM) control circuit, a free run counter counts a pulse signal to count a value, and generates an overflow signal when the counted value is equal to a predetermined value. A transfer control circuit allows a set value to be transferred from a master compare register to a slave compare register and inhibits the transfer of the set value in response to the overflow signal. A comparing circuit compares the counted value in the free run counter and the set value transferred into the slave compare register and generates a coincident signal when the counted value is coincident with the set value. An output circuit generates a PWM signal in response to the overflow signal and the coincident signal.
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Y. Hirsch, "Applications of Digital PWM Integrated Circuits", IEEE Applied Power Electronics Conference and Exposition, vol. 1, Apr. 28, 1986, pp. 171-177.
Auve Glenn A.
NEC Corporation
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