公开(公告)号：US08981856B1

公开(公告)日：2015-03-17

申请号：US14015837

申请日：2013-08-30

Applicant: Integrated Device Technology, Inc.

Inventor： Trevor Newlin

IPC: H03L7/00 ,  H03L7/06

CPC classification number: H03L7/00 ,  H03L1/02

Abstract: An oscillator circuit includes an adjustable frequency oscillator configured to free-run at a first frequency below a desired second target frequency. This adjustable frequency oscillator is configured to modulate a frequency of its periodic output signal upwards from the first frequency to the second frequency in response to a feedback bias current. A divider is also provided, which is configured to convert the periodic output signal to a reduced-frequency control signal. This reduced-frequency control signal is provided to a frequency-to-current (F2C) converter, which is configured to drive the adjustable frequency oscillator with the feedback bias current (e.g., pull-down current) in response to the reduced-frequency control signal.

Abstract translation: 振荡器电路包括被配置为以低于期望的第二目标频率的第一频率自由运行的可调频振荡器。 该可调频振荡器被配置为响应于反馈偏置电流将其周期性输出信号的频率从第一频率向上调制到第二频率。 还提供了一个分频器，其被配置为将周期性输出信号转换为降频控制信号。 该降频控制信号被提供给频率到电流（F2C）转换器，其被配置为响应于降频控制而以反馈偏置电流（例如，下拉电流）驱动可调频振荡器 信号。

公开(公告)号：US09431838B2

公开(公告)日：2016-08-30

申请号：US13836165

申请日：2013-03-15

Applicant: Integrated Device Technology, Inc.

Inventor： Trevor Newlin

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J2007/0059

Abstract: Charging systems and related methods are disclosed for switching voltage regulators. A charging controller may be configured to generate a control signal indicating a first level of an output current generated by a switching voltage regulator for charging an energy storage device, determine that an output voltage exceeded a predetermined threshold, and generate the control signal indicating a new level of the output current that is reduced from the first level. A method of controlling charging of an energy storage device may comprise monitoring an output voltage charging an energy storage device, comparing a reference signal and a current sense signal to generate a PWM control signal that determines an output current for a switching voltage regulator generating the output voltage, and decrementing the reference signal in response to the output voltage exceeding a predetermined level for a maximum charging voltage for the energy storage device.

Abstract translation: 公开了用于开关稳压器的充电系统和相关方法。 充电控制器可以被配置为产生指示由开关电压调节器产生的用于对能量存储装置充电的输出电流的第一电平的控制信号，确定输出电压超过预定阈值，并且产生指示新的 从第一级降低的输出电流的电平。 控制能量存储装置的充电的方法可以包括监视对能量存储装置充电的输出电压，比较参考信号和电流感测信号以产生PWM控制信号，该PWM控制信号确定产生输出的开关电压调节器的输出电流 电压，并且响应于输出电压超过用于能量存储装置的最大充电电压的预定电平而使参考信号递减。

公开(公告)号：US09515510B2

公开(公告)日：2016-12-06

申请号：US14212947

申请日：2014-03-14

Applicant: Integrated Device Technology, Inc.

Inventor： Trevor Newlin

IPC: H02J7/00

CPC classification number: H02J7/0091

Abstract: A charging system includes a temperature sensor to generate a temperature signal responsive to a temperature of an energy storage device. A circuit temperature sensor generates a circuit temperature signal responsive to a temperature of a semiconductor device. A charge adjuster generates a desired current signal responsive to the temperature signal and the circuit temperature signal. A comparator compares a charge-current level signal to the desired current signal to generate a charge adjustment signal. A charge controller on the semiconductor device generates and adjusts a current of a charging signal for charging the energy storage device responsive to the charge adjustment signal. The charge adjuster may generate a reduction signal when the temperature signal is above a throttle threshold, reduce a digital desired current signal responsive to the reduction signal, and convert the digital desired current signal to the desired current signal as an analog signal.

Abstract translation: 充电系统包括温度传感器，用于响应于能量存储装置的温度产生温度信号。 电路温度传感器响应于半导体器件的温度产生电路温度信号。 电荷调节器响应于温度信号和电路温度信号产生期望的电流信号。 比较器将充电电流电平信号与期望的电流信号进行比较，以产生电荷调节信号。 半导体装置上的充电控制器响应于电荷调节信号产生并调节用于对能量存储装置充电的充电信号的电流。 当温度信号高于节流门限时，电荷调节器可以产生减小信号，响应于减小信号减小数字期望电流信号，并将数字期望电流信号转换为期望的电流信号作为模拟信号。

公开(公告)号：US20140266015A1

公开(公告)日：2014-09-18

申请号：US14212947

申请日：2014-03-14

Applicant: Integrated Device Technology, Inc.

Inventor： Trevor Newlin

IPC: H02J7/00

CPC classification number: H02J7/0091

Abstract: A charging system includes a temperature sensor to generate a temperature signal responsive to a temperature of an energy storage device. A circuit temperature sensor generates a circuit temperature signal responsive to a temperature of a semiconductor device. A charge adjuster generates a desired current signal responsive to the temperature signal and the circuit temperature signal. A comparator compares a charge-current level signal to the desired current signal to generate a charge adjustment signal. A charge controller on the semiconductor device generates and adjusts a current of a charging signal for charging the energy storage device responsive to the charge adjustment signal. The charge adjuster may generate a reduction signal when the temperature signal is above a throttle threshold, reduce a digital desired current signal responsive to the reduction signal, and convert the digital desired current signal to the desired current signal as an analog signal.

Abstract translation: 充电系统包括温度传感器，用于响应于能量存储装置的温度产生温度信号。 电路温度传感器响应于半导体器件的温度产生电路温度信号。 电荷调节器响应于温度信号和电路温度信号产生期望的电流信号。 比较器将充电电流电平信号与期望的电流信号进行比较，以产生电荷调节信号。 半导体装置上的充电控制器响应于电荷调节信号产生并调节用于对能量存储装置充电的充电信号的电流。 当温度信号高于节流门限时，电荷调节器可以产生减小信号，响应于减小信号减小数字期望电流信号，并将数字期望电流信号转换为期望的电流信号作为模拟信号。

公开(公告)号：US20140266010A1

公开(公告)日：2014-09-18

申请号：US13836165

申请日：2013-03-15

Applicant: INTEGRATED DEVICE TECHNOLOGY, INC.

Inventor： Trevor Newlin

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J2007/0059

Abstract: Charging systems and related methods are disclosed for switching voltage regulators. A charging controller may be configured to generate a control signal indicating a first level of an output current generated by a switching voltage regulator for charging an energy storage device, determine that an output voltage exceeded a predetermined threshold, and generate the control signal indicating a new level of the output current that is reduced from the first level. A method of controlling charging of an energy storage device may comprise monitoring an output voltage charging an energy storage device, comparing a reference signal and a current sense signal to generate a PWM control signal that determines an output current for a switching voltage regulator generating the output voltage, and decrementing the reference signal in response to the output voltage exceeding a predetermined level for a maximum charging voltage for the energy storage device.

Abstract translation: 公开了用于开关稳压器的充电系统和相关方法。 充电控制器可以被配置为产生指示由开关电压调节器产生的用于对能量存储装置充电的输出电流的第一电平的控制信号，确定输出电压超过预定阈值，并且产生指示新的 从第一级降低的输出电流的电平。 控制能量存储装置的充电的方法可以包括监视对能量存储装置充电的输出电压，比较参考信号和电流感测信号以产生PWM控制信号，该PWM控制信号确定产生输出的开关稳压器的输出电流 电压，并且响应于输出电压超过用于能量存储装置的最大充电电压的预定电平而使参考信号递减。