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公开(公告)号：US20180175730A1
公开(公告)日：2018-06-21
申请号：US15382482
申请日：2016-12-16
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kong Yin LEONG
CPC classification number: H02M3/156 , H02M2001/0009 , H02M2001/0019
Abstract: The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is providing the power to the load. If the pulse width modulation signal has a high frequency, then it will be providing higher power to the load. As the power drawn by the load decreases, the frequency of the pulse width modulation power supply signal will decrease. By sensing and periodically sampling the frequency of the pulse width modulation signal that is providing power, the demand of the load can be quickly and accurately determined. As the power demand of the load decreases, the peak current that the power supply switch can provide also decreases. The permitted peak current dynamically changes to adapt to the power drawn by the load.
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公开(公告)号：US20190267899A1
公开(公告)日：2019-08-29
申请号：US16405861
申请日：2019-05-07
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kong Yin LEONG
Abstract: The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is providing the power to the load. If the pulse width modulation signal has a high frequency, then it will be providing higher power to the load. As the power drawn by the load decreases, the frequency of the pulse width modulation power supply signal will decrease. By sensing and periodically sampling the frequency of the pulse width modulation signal that is providing power, the demand of the load can be quickly and accurately determined. As the power demand of the load decreases, the peak current that the power supply switch can provide also decreases. The permitted peak current dynamically changes to adapt to the power drawn by the load.
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公开(公告)号：US20180294722A1
公开(公告)日：2018-10-11
申请号：US16004253
申请日：2018-06-08
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kong Yin LEONG
CPC classification number: H02M3/158 , H02M1/088 , H02M3/156 , H02M2001/0009 , H02M2001/0019
Abstract: The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is providing the power to the load. If the pulse width modulation signal has a high frequency, then it will be providing higher power to the load. As the power drawn by the load decreases, the frequency of the pulse width modulation power supply signal will decrease. By sensing and periodically sampling the frequency of the pulse width modulation signal that is providing power, the demand of the load can be quickly and accurately determined. As the power demand of the load decreases, the peak current that the power supply switch can provide also decreases. The permitted peak current dynamically changes to adapt to the power drawn by the load.
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