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公开(公告)号：US10361698B2
公开(公告)日：2019-07-23
申请号：US15413166
申请日：2017-01-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03F3/217 , H03K17/06 , H03K17/691 , H02M3/07 , H03K17/567 , H01L29/16
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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公开(公告)号：US20200106435A1
公开(公告)日：2020-04-02
申请号：US16520241
申请日：2019-07-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03F3/217 , H03K17/06 , H03K17/691 , H02M3/07 , H03K17/567
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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公开(公告)号：US10778218B2
公开(公告)日：2020-09-15
申请号：US16520241
申请日：2019-07-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03F3/217 , H03K17/06 , H03K17/691 , H02M3/07 , H03K17/567 , H01L29/16
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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公开(公告)号：US10784859B2
公开(公告)日：2020-09-22
申请号：US16520253
申请日：2019-07-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03F3/217 , H03K17/06 , H03K17/691 , H02M3/07 , H03K17/567 , H01L29/16
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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公开(公告)号：US20200106436A1
公开(公告)日：2020-04-02
申请号：US16520253
申请日：2019-07-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03F3/217 , H03K17/06 , H03K17/691 , H02M3/07 , H03K17/567
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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公开(公告)号：US20180241391A1
公开(公告)日：2018-08-23
申请号：US15413166
申请日：2017-01-23
申请人： Raytheon Company
IPC分类号： H03K17/687 , H03K17/567 , H02M3/07
CPC分类号： H03K17/6871 , H01L29/1608 , H02M3/07 , H03F3/2171 , H03K17/06 , H03K17/063 , H03K17/567 , H03K17/691 , H03K2217/0081
摘要： A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias voltage and a negative bias voltage; and a secondary winding responsive to the bipolar signal to generate a PWM output signal. A first charge pump is connected to the secondary winding responsive to the PWM output signal to generate a level shifted PWM output signal. A second charge pump is connected to the secondary winding to generate a readjusted PWM output signal by decreasing at least a portion of the level shifted PWM output signal. A gate switching device is connected to the first charge pump and second charge pump. A level shifted PWM output signal establishes an ON condition and the readjusted PWM output signal establishes an OFF condition of the gate MOSFET.
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