公开(公告)号：US20130293207A1

公开(公告)日：2013-11-07

申请号：US13852973

申请日：2013-03-28

Applicant: Intersil Americas LLC

Inventor： Jia WEI ,  Michael Jason HOUSTON

IPC: G05F1/46

CPC classification number: G05F1/46 ,  H02M3/1584 ,  H02M2001/0032 ,  H02M2003/1586 ,  Y02B70/16

Abstract: An embodiment of a power supply includes an input node operable to receive an input voltage, an output node operable to provide a regulated output voltage, an odd number of magnetically coupled phase paths each coupled between the input and output nodes, and a first magnetically uncoupled phase path coupled between the input and output nodes. Such a power supply may improve its efficiency by activating different combinations of the coupled and uncoupled phase paths depending on the load conditions. For example, the power supply may activate only an uncoupled phase path during light-load conditions, may activate only coupled phase paths during moderate-load conditions, and may activate both coupled and uncoupled phase paths during heavy-load conditions and during a step-up load transient.

Abstract translation: 电源的实施例包括可操作以接收输入电压的输入节点，可操作以提供调节输出电压的输出节点，每个耦合在输入和输出节点之间的奇数个磁耦合相位路径，以及第一磁耦合 相位路径耦合在输入和输出节点之间。 这样的电源可以通过根据负载条件激活耦合和非耦合相位路径的不同组合来提高其效率。 例如，在轻负载状态期间，电源可以仅激活非耦合相位路径，在中等负载状态下仅激活耦合的相位路径，并且可以在重负载状态期间和在步进电压期间激活耦合和非耦合相位路径， up负载瞬变。

公开(公告)号：US20180076641A1

公开(公告)日：2018-03-15

申请号：US15688398

申请日：2017-08-28

Applicant: Intersil Americas LLC

Inventor： Michael Jason HOUSTON ,  Lei ZHAO

IPC: H02J7/00 ,  H02M3/158 ,  H02J3/00 ,  H02M7/04 ,  H02M1/14 ,  H02M1/00

Abstract: A voltage error signal is provided to a PWM controller of a voltage regular and used to produce a PWM signal that drives a power stage of the regulator. When operating in an adapter current limit regulation mode, an adapter current sense voltage, indicative of an adapter current, is compared to an adapter current reference voltage to produce an adapter current error signal. A compensator receives the adapter current error signal and outputs a compensated adapter current error signal. The adapter current sense voltage, or a high pass filtered version thereof, is subtracted from the compensated adapter current error signal to produce the voltage error signal provided to the PWM controller. Alternatively, an input voltage, or a high pass filtered version thereof, is added to the compensated adapter current error signal to produce the voltage error signal.

公开(公告)号：US20180166992A1

公开(公告)日：2018-06-14

申请号：US15878226

申请日：2018-01-23

Applicant: Intersil Americas LLC

Inventor： Michael Jason HOUSTON

IPC: H02M3/158

CPC classification number: H02M3/1582

Abstract: An electronic system, DC-DC voltage converter, method of operating a buck-boost DC-DC converter, and method for power mode transitioning in a DC-DC voltage converter are disclosed. For example, one method includes receiving a compensated error signal associated with an output voltage of the DC-DC voltage converter, determining a power mode of operation of the DC-DC voltage converter, and if the power mode of operation is a first mode, outputting a first control signal to regulate the output voltage of the DC-DC voltage converter. If the power mode of operation is a second mode, outputting a second control signal to regulate the output voltage of the DC-DC voltage converter, and if the power mode of operation is a third mode, outputting a third control signal to regulate the output voltage of the DC-DC voltage converter.

公开(公告)号：US20170237347A1

公开(公告)日：2017-08-17

申请号：US15585028

申请日：2017-05-02

Applicant: Intersil Americas LLC

Inventor： Michael Jason HOUSTON ,  Steven Patrick LAUR

IPC: H02M3/157 ,  H02M1/08

Abstract: The system and method creates a substantially constant output voltage ripple in a buck converter in discontinuous conduction mode by varying the on-time of a pulse width modulator (PWM) signal driving the buck converter when the buck converter is operating in discontinuous conduction mode. A first signal is generated that is a function of the switching frequency of the buck converter. This signal is low-pass filtered and compared with a second signal that is a function of the switching frequency of the buck converter when operating in continuous conduction mode and with constant PWM on-time. The output signal generated by the comparator is a signal that is equal to the ratio of the first signal and the second signal. The on-time of a voltage controlled oscillator is controlled by the output signal, the oscillator signal causing the on-time of the PWM signal to vary in a controlled fashion.