-
公开(公告)号：US11368036B2
公开(公告)日：2022-06-21
申请号：US16860944
申请日：2020-04-28
Applicant: NXP B.V.
Abstract: One example discloses a power management circuit, including: an ultrasonic transmitter configured to generate an ultrasonic signal having a set of transmitted ultrasonic signal attributes; an ultrasonic receiver configured to detect the ultrasonic signal having a set of received ultrasonic signal attributes; wherein the power management circuit is configured to cause a device to be operated at a first power level and a second power level; and a proximity detection circuit configured to transition the device from the first power level to the second power level in response to a preselected difference between the transmitted set of ultrasonic signal attributes and the received set of ultrasonic signal attributes.
-
Patent Agency Ranking
公开(公告)号：US20180287419A1
公开(公告)日：2018-10-04
申请号：US15477199
申请日：2017-04-03
Applicant: NXP B.V.
CPC classification number: H02J7/042 , G01C19/00 , H02J7/0029 , H02J7/0045
Abstract: One example discloses a power management circuit, wherein the power management circuit is configured to cause a device to be operated at a first power level and a second power level. The circuit includes: an RF transmitter configured to generate an RF signal having a set of transmitted RF signal attributes; an RF receiver configured to detect the RF signal having a set of received RF signal attributes; and a proximity detection circuit configured to transition the device from the first power level to the second power level in response to a preselected difference between the transmitted set of RF signal attributes and the received set of RF signal attributes.
-
公开(公告)号：US09831787B1
公开(公告)日：2017-11-28
申请号：US15167364
申请日：2016-05-27
Applicant: NXP B.V.
Inventor： Hans Halberstadt , Ferdinand Jacob Sluijs
CPC classification number: H02M3/33569 , H02M3/3353 , H02M3/33546 , H02M2007/4811 , H02M2007/4815 , H02M2007/4818 , Y02B70/1433
Abstract: Disclosed is a power converter including a generator configured to generate a sequence of output voltage waveforms, a resonant tank connected to the generator comprising at least one capacitor and at least one inductor, a transformer including a primary side connected in series with said series inductor and, the primary side being configurable to use at least one primary winding tap and a secondary side for connecting to a rectifying circuit for providing a rectified DC voltage to an output load circuit, a first switch and a second switch on the primary side connected to the primary winding, wherein the at least one primary winding is selected by the first switch or the second switch to select a different reflected output voltage by closing the first switch or the second switch.
-
公开(公告)号：US20170346410A1
公开(公告)日：2017-11-30
申请号：US15167364
申请日：2016-05-27
Applicant: NXP B.V.
Inventor： Hans Halberstadt , Ferdinand Jacob Sluijs
CPC classification number: H02M3/33569 , H02M3/3353 , H02M3/33546 , H02M2007/4811 , H02M2007/4815 , H02M2007/4818 , Y02B70/1433
Abstract: Disclosed is a power converter including a generator configured to generate a sequence of output voltage waveforms, a resonant tank connected to the generator comprising at least one capacitor and at least one inductor, a transformer including a primary side connected in series with said series inductor and, the primary side being configurable to use at least one primary winding tap and a secondary side for connecting to a rectifying circuit for providing a rectified DC voltage to an output load circuit, a first switch and a second switch on the primary side connected to the primary winding, wherein the at least one primary winding is selected by the first switch or the second switch to select a different reflected output voltage by closing the first switch or the second switch.
-
公开(公告)号：US20210336470A1
公开(公告)日：2021-10-28
申请号：US16860944
申请日：2020-04-28
Applicant: NXP B.V.
Abstract: One example discloses a power management circuit, including: an ultrasonic transmitter configured to generate an ultrasonic signal having a set of transmitted ultrasonic signal attributes; an ultrasonic receiver configured to detect the ultrasonic signal having a set of received ultrasonic signal attributes; wherein the power management circuit is configured to cause a device to be operated at a first power level and a second power level; and a proximity detection circuit configured to transition the device from the first power level to the second power level in response to a preselected difference between the transmitted set of ultrasonic signal attributes and the received set of ultrasonic signal attributes.
-
公开(公告)号：US10447068B2
公开(公告)日：2019-10-15
申请号：US15477199
申请日：2017-04-03
Applicant: NXP B.V.
Abstract: One example discloses a power management circuit, wherein the power management circuit is configured to cause a device to be operated at a first power level and a second power level. The circuit includes: an RF transmitter configured to generate an RF signal having a set of transmitted RF signal attributes; an RF receiver configured to detect the RF signal having a set of received RF signal attributes; and a proximity detection circuit configured to transition the device from the first power level to the second power level in response to a preselected difference between the transmitted set of RF signal attributes and the received set of RF signal attributes.
-
-
-
-
-
Search Results
6
records
(took 0.01 seconds)
