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1.发明申请Switching Converter with Plural Converter Stages having Calibrated Current Uptake 有权具有校准电流吸收的多个转换器级的开关转换器公开(公告)号：US20100244803A1
公开(公告)日：2010-09-30
申请号：US12815268
申请日：2010-06-14
IPC分类号： G05F1/613
CPC分类号： H02M3/1584
摘要： A switching converter according includes a control arrangement to furnish a control signal dependent on the output voltage, as well as a first and at least one second converter stage. Each converter includes an inductive storage element, a ramp signal generator to furnish a signal having a ramp slope, a pulse width modulator which receives the control signal and the ramplike signal and which furnishes a pulse width modulated signal, and a driver circuit which receives the pulse width modulated signal and the input voltage and which applies the input voltage to the inductive storage element depending on the pulse width modulated signal. The ramp slope of the ramplike signal of the at least one second converter stage is adjustable. The ramp signal generator of the second converter stage receives a calibration signal which depends on the inductance of the inductive storage element of the first converter stage.
摘要翻译： 一种开关转换器，包括控制装置，用于提供取决于输出电压的控制信号，以及第一和至少一个第二转换器级。 每个转换器包括电感存储元件，斜坡信号发生器以提供具有斜坡斜率的信号，接收控制信号的脉宽调制器和ramplike信号并提供脉宽调制信号的驱动电路，以及接收 脉冲宽度调制信号和输入电压，并根据脉宽调制信号将输入电压施加到感应存储元件。 至少一个第二转换器级的ramplike信号的斜坡斜率是可调节的。 第二转换器级的斜坡信号发生器接收取决于第一转换器级的感应存储元件的电感的校准信号。
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2.发明授权Switching converter with plural converter stages having calibrated current uptake 有权具有校准电流摄取的多个转换器级的开关转换器公开(公告)号：US07759919B2
公开(公告)日：2010-07-20
申请号：US11728036
申请日：2007-03-23
IPC分类号： G05F1/613
CPC分类号： H02M3/1584
摘要： A switching converter includes a control arrangement and multiple converter stages. The control arrangement generates a control signal dependent on the output voltage. Each converter stage includes an inductive storage element, a current measurement arrangement that detects a current across the inductive storage element and furnishes a current measuring signal proportional to this current, a pulse width modulator that receives the control signal and the current measuring signal and generates a PWM signal, and a driver circuit that applies the input voltage to the inductive storage element in dependence on the PWM signal. The current measurement arrangement of a second converter stage adjusts a proportionality factor between the current across the inductive storage element and the current measurement signal thereof, responsive to an adjustment signal that is dependent on a proportionality factor between a current across the inductive storage element and the current measuring signal of a first converter stage.
摘要翻译： 开关转换器包括控制装置和多个转换器级。 控制装置根据输出电压产生控制信号。 每个转换器级包括感应存储元件，电流测量装置，其检测电感存储元件两端的电流并提供与该电流成比例的电流测量信号;脉宽调制器，其接收控制信号和电流测量信号， PWM信号以及根据PWM信号将输入电压施加到感应存储元件的驱动电路。 第二转换器级的当前测量布置响应于依赖于电感存储元件和电感存储元件之间的电流之间的比例因子的调整信号来调整电感存储元件两端的电流与其电流测量信号之间的比例因子 第一转换器级的电流测量信号。
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3.发明授权Switching converter with plural converter stages having calibrated current uptake 有权具有校准电流摄取的多个转换器级的开关转换器公开(公告)号：US08049474B2
公开(公告)日：2011-11-01
申请号：US12815268
申请日：2010-06-14
IPC分类号： G05F1/613
CPC分类号： H02M3/1584
摘要： A switching converter according includes a control arrangement to furnish a control signal dependent on the output voltage, as well as a first and at least one second converter stage. Each converter includes an inductive storage element, a ramp signal generator to furnish a signal having a ramp slope, a pulse width modulator which receives the control signal and the ramplike signal and which furnishes a pulse width modulated signal, and a driver circuit which receives the pulse width modulated signal and the input voltage and which applies the input voltage to the inductive storage element depending on the pulse width modulated signal. The ramp slope of the ramplike signal of the at least one second converter stage is adjustable. The ramp signal generator of the second converter stage receives a calibration signal which depends on the inductance of the inductive storage element of the first converter stage.
摘要翻译： 一种开关转换器，包括控制装置，用于提供取决于输出电压的控制信号，以及第一和至少一个第二转换器级。 每个转换器包括电感存储元件，斜坡信号发生器以提供具有斜坡斜率的信号，接收控制信号的脉宽调制器和ramplike信号并提供脉宽调制信号的驱动电路，以及接收 脉冲宽度调制信号和输入电压，并根据脉宽调制信号将输入电压施加到感应存储元件。 至少一个第二转换器级的ramplike信号的斜坡斜率是可调节的。 第二转换器级的斜坡信号发生器接收取决于第一转换器级的感应存储元件的电感的校准信号。
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公开(公告)号：US20070236287A1
公开(公告)日：2007-10-11
申请号：US11728036
申请日：2007-03-23
IPC分类号： H03F3/38
CPC分类号： H02M3/1584
摘要： The invention relates to a switching converter for generating an output voltage (Vout) from an input voltage (vin), comprising: a control arrangement (30) for furnishing a control signal (Serr) dependent on the output voltage (Vout); a first converter stage (1A) and at least one second converter stage (1B, 1C), each of which has: an inductive storage element (11A, 11B, 11C), a current measurement arrangement (12A, 12B, 12C) which is designed to detect a current (IL1, IL2, IL3) across the inductive storage element (11A, 11B, 11C) and to furnish a current measuring signal (Is1, Is2, Is3) proportional to this current, a pulse width modulator (16A, 16B, 16C) which receives the control signal (Serr) and the current measuring signal (Is1, Is2, Is3) and which furnishes a pulse width modulated signal (PWM1, PWM2, PWM3), and a driver circuit which receives the pulse width modulated signal (PWM1, PWM2, PWM3) and the input voltage (Vin) and which applies the input voltage (Vin) in dependence on the pulse width modulated signal (PWM1, PWM2, PWM3) to the inductive storage element (11A, 11B, 11C), wherein a proportionality factor between the current (IL2, IL3) across the inductive storage element (11B, 11C) and the current measuring signal (Is2, Is3) of the current measurement arrangement (12B, 12C) of the at least one second converter stage (1B, 1C) can be adjusted and wherein the current measurement arrangement (12B, 12C) of the at least one second converter stage receives an adjustment signal (k2, k3), which is dependent on a proportionality factor between a current across the inductive storage element (11A) of the first switching converter (1A) and the current measuring signal (Is1) of the first switching converter (1A).
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