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1. 发明授权

US11283347B2 Control circuit for supplying VCC 有权
公开(公告)号：US11283347B2
公开(公告)日：2022-03-22
申请号：US15562597
申请日：2015-07-15
申请人： Mitsubishi Electric Corporation
发明人： Mitsutaka Hano
IPC分类号： H02M1/36 , H02M3/155 , H02M1/08 , H02M1/42 , H02M3/156 , H02M1/00
摘要： A control circuit of the present invention includes a drive circuit for outputting a gate drive signal, a charging circuit for generating a charging current when the drive circuit is started up, and a Vcc control circuit for, upon receiving an output from the charging circuit, outputting a control signal for supplying Vcc for the drive circuit, wherein the drive circuit, the charging circuit, and the Vcc control circuit are provided in one chip.

2. 发明授权

US10345833B2 Voltage-current converter and load driver 有权
公开(公告)号：US10345833B2
公开(公告)日：2019-07-09
申请号：US15453747
申请日：2017-03-08
申请人： Mitsubishi Electric Corporation
发明人： Yo Habu , Mitsutaka Hano
IPC分类号： H03B1/00 , H03K3/00 , G05F1/56 , G05F3/26 , H03K17/687 , H05B33/08
摘要： A current to be supplied to a load driven by the current is linearly controlled in accordance with a voltage. A voltage-current converter according to the present invention includes a differential amplifier, a first current mirror, and a voltage setting unit. The differential amplifier receives an input voltage from an input terminal and outputs a voltage in accordance with a difference between the input voltage and a threshold voltage. The first current mirror receives the voltage from the differential amplifier and outputs an output current to an output terminal. The voltage setting unit sets the threshold voltage.

3. 发明授权

US11990894B2 Semiconductor element driving circuit and semiconductor element driving device 有权
公开(公告)号：US11990894B2
公开(公告)日：2024-05-21
申请号：US17830132
申请日：2022-06-01
申请人： Mitsubishi Electric Corporation
发明人： Jun Fukudome , Kazuya Hokazono , Mitsutaka Hano , Yuki Terado
IPC分类号： H03K17/081 , H03K17/16
CPC分类号： H03K17/08104 , H03K17/163 , H03K17/168
摘要： A semiconductor device includes a first switch and a first driver. The first switch selects and outputs one of a power supply potential and a generated potential as a first switch output potential based on a synchronization signal from a transmission circuit and a delayed signal delayed from the synchronization signal. The first driver charges a gate of a bipolar transistor element based on the synchronization signal of the transmission circuit and the first switch output potential.

4. 发明授权

US11711010B2 Drive circuit and inverter device 有权
公开(公告)号：US11711010B2
公开(公告)日：2023-07-25
申请号：US17231795
申请日：2021-04-15
申请人： Mitsubishi Electric Corporation
发明人： Shohei Sano , Akihisa Yamamoto , Mitsutaka Hano
IPC分类号： H02M1/08 , H02M7/537 , H02M1/00 , H01L29/78
CPC分类号： H02M1/08 , H02M1/0006 , H02M7/537 , H01L29/7817
摘要： A drive circuit includes a first driver to control on/off of an upper arm, a second driver to control on/off of a lower arm, a first switching device including a first terminal connected with a power supply for the first driver, a second terminal connected with a power supply for the second driver and a control terminal, a booster circuit to turn on the first switching device by boosting a control signal which is at a high level when the lower arm is in an on state, a second switching device to cause continuity between the control terminal and the booster circuit when the control signal is at the high level, and first switch unit to short-circuit the control terminal and the terminal for grounding when the control signal is at the low level.

5. 发明授权

US11476847B2 Semiconductor device drive circuit 有权
公开(公告)号：US11476847B2
公开(公告)日：2022-10-18
申请号：US17474726
申请日：2021-09-14
申请人： Mitsubishi Electric Corporation
发明人： Jun Fukudome , Kazuya Hokazono , Mitsutaka Hano
IPC分类号： H03K3/00 , H03K3/037 , H03K17/06 , H03K17/16 , H02M1/08 , H03K17/687 , H03K19/0185 , H03K19/0944
摘要： An object of the present disclosure is to provide a semiconductor device drive circuit stably preventing an erroneous operation in accordance with an application of dV/dt. A semiconductor device drive circuit includes: pulse transmission circuits outputting an on-pulse transmission signal and an off-pulse transmission signal based on a level shift on-pulse signal and a level shift off-pulse signal; a dV/dt detection circuit detecting a dV/dt period based on the level shift on-pulse signal and the level shift off-pulse signal; a logic filter circuit which does not change outputs when both the on-pulse transmission signal and the off-pulse transmission signal are input; and a latch circuit outputting a signal synchronized with an output of the logic filter circuit. The pulse transmission circuit includes impedance adjusting parts reducing a signal level of the on-pulse transmission signal and the off-pulse transmission signal during the dV/dt period.

6. 发明授权

US10784856B2 Semiconductor device 有权
公开(公告)号：US10784856B2
公开(公告)日：2020-09-22
申请号：US16582272
申请日：2019-09-25
申请人： Mitsubishi Electric Corporation
发明人： Mitsutaka Hano , Akihisa Yamamoto
IPC分类号： H03K3/00 , H03K17/687 , G05F1/00 , G05F3/02 , H03K17/16 , H01L29/78 , H02M1/08 , H01L29/40 , H05B45/37
摘要： A semiconductor device includes a first drive circuit and a bootstrap control circuit. When a voltage VB is equal to or smaller than a power supply voltage VCC, the boost control circuit turns on a MOSFET by controlling a gate signal input to a gate terminal, and a back gate control circuit makes a voltage applied to a back gate terminal smaller than the voltage VB.

7. 发明授权

US09130546B2 Drive circuit for semiconductor device 有权
标题翻译：半导体器件驱动电路
公开(公告)号：US09130546B2
公开(公告)日：2015-09-08
申请号：US14244366
申请日：2014-04-03
申请人： Mitsubishi Electric Corporation
发明人： Masayoshi Utani , Mitsutaka Hano
IPC分类号： H03B1/00 , H03K3/012 , H03K17/687 , H02M1/08
CPC分类号： H03K3/012 , H02M1/08 , H03K17/687 , H03K2217/0036 , H03K2217/0081
摘要： A drive circuit is provided with an input terminal for receiving input signals, an output terminal that outputs drive signals generated from the input signals, a control power supply terminal that receives a control power supply voltage, an output terminal that outputs an output signal, and a reset terminal that receives a reset signal. The output signal is given to a gate of a MOSFET. A secondary side circuit and a MOSFET constitute a step-down chopper circuit, which steps down a voltage through duty ratio control of the gate drive signal and generates a control power supply voltage. Upon receipt of a reset signal, the drive circuit stops outputting the drive signal and changes the output signal so as to reduce the control power supply voltage VCC.
摘要翻译：驱动电路设置有用于接收输入信号的输入端子，输出端子，输出从输入信号产生的驱动信号，控制电源端子接收控制电源电压，输出端子输出输出信号，以及接收复位信号的复位端子。输出信号被提供给MOSFET的栅极。次级侧电路和MOSFET构成降压斩波电路，其通过栅极驱动信号的占空比控制降压，并产生控制电源电压。在接收到复位信号时，驱动电路停止输出驱动信号并改变输出信号，以便降低控制电源电压VCC。

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