James Thomas Doyle - Nederland CO, US Michael Angelo Tamburrino - Longmont CO, US
Assignee:
National Semiconductor Corporation - Santa Clara CA
International Classification:
H01L 29/745 H01L 21/4763
US Classification:
257213, 257700, 257758, 438618, 438622
Abstract:
A digital power supply system provides a supply voltage to semiconductor circuits. The power supply system utilizes a pulse width modulator to output a signal into a LC filter that generates a DC supply voltage. The width of the pulses output by the pulse width modulator are defined by an encoder that generates width information in response to a propagation delay detector that measures the propagation delay of a first clock signal when clocked by a second clock signal.
James Thomas Doyle - Nederland CO Michael Angelo Tamburrino - Longmont CO
Assignee:
National Semiconductor Corporation - Santa Clara CA
International Classification:
H03K 300
US Classification:
327108, 327112, 327534
Abstract:
A digital power supply system provides a supply voltage to semiconductor circuits. The power supply system utilizes a pulse width modulator to output a signal into a LC filter that generates a DC supply voltage. The width of the pulses output by the pulse width modulator are defined by an encoder that generates width information in response to a propagation delay detector that measures the propagation delay of a first clock signal when clocked by a second clock signal.