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1. 发明授权

US08363372B2 Rapid discharging circuit upon detection of abnormality 有权
标题翻译：检测到异常时快速放电电路
公开(公告)号：US08363372B2
公开(公告)日：2013-01-29
申请号：US12801654
申请日：2010-06-18
申请人： Jun Fukuhara , Tsuyoshi Mitsuda
发明人： Jun Fukuhara , Tsuyoshi Mitsuda
IPC分类号： H02H3/08
CPC分类号： H03K17/163 , H03K17/0822
摘要： Provided is a protection circuit that is connected between a power supply terminal and an output terminal, and turns off an output transistor when an abnormality occurs in a system, the output transistor outputting a current to a load connected to the output terminal, the protection circuit including: a first discharge unit that is connected between a gate electrode of the output transistor and the power supply terminal, and discharges an electric charge of the gate electrode until a potential of the gate electrode becomes equal to a power supply potential, when an abnormality occurs in the system, and a second discharge unit that is connected between the gate electrode and a source electrode of the output transistor, and discharges the electric charge of the gate electrode until the potential of the gate electrode becomes equal to an output potential, when an abnormality occurs in the system.
摘要翻译：提供了一种连接在电源端子和输出端子之间的保护电路，并且在系统发生异常时关闭输出晶体管，输出晶体管向连接到输出端子的负载输出电流，保护电路包括：连接在输出晶体管的栅电极和电源端之间的第一放电单元，并且当栅电极的电位变得等于电源电位时，放电栅电极的电荷，当异常发生在系统中，以及第二放电单元，其连接在输出晶体管的栅电极和源电极之间，并且放电栅电极的电荷，直到栅电极的电位变得等于输出电位，当系统发生异常。

2. 发明授权

US08325451B2 Power switching circuit 有权
标题翻译：电源开关电路
公开(公告)号：US08325451B2
公开(公告)日：2012-12-04
申请号：US12379730
申请日：2009-02-27
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02H3/08 , H02H9/02
CPC分类号： H03K17/0822 , H03K17/284
摘要： A power switching circuit according to an exemplary embodiment of the present invention includes an output transistor connected between a power supply terminal VCC and an output terminal OUT, an output controller which controls a conducting state of the output transistor according to an input signal, a sense transistor having a gate commonly connected with the output transistor, which detects an output current flowing into the output transistor, an output current detection terminal in which a detection voltage is generated according to the output current detected by the sense transistor and a short circuit detector which detects a short circuit condition of the output current detection terminal according to the detection voltage and stops the output transistor or limits the output current.
摘要翻译：根据本发明的示例性实施例的功率开关电路包括连接在电源端子VCC和输出端子OUT之间的输出晶体管，输出控制器，其根据输入信号控制输出晶体管的导通状态，感测晶体管，其具有与输出晶体管公共连接的栅极，其检测流入输出晶体管的输出电流;输出电流检测端子，其中根据由感测晶体管检测的输出电流产生检测电压;以及短路检测器，根据检测电压检测输出电流检测端子的短路状况，停止输出晶体管或限制输出电流。

3. 发明申请

US20110007442A1 Rapid discharging circuit upon detection of abnormality 有权
标题翻译：检测到异常时快速放电电路
公开(公告)号：US20110007442A1
公开(公告)日：2011-01-13
申请号：US12801654
申请日：2010-06-18
申请人： Jun Fukuhara , Tsuyoshi Mitsuda
发明人： Jun Fukuhara , Tsuyoshi Mitsuda
IPC分类号： H02H3/02 , H02H5/04
CPC分类号： H03K17/163 , H03K17/0822
摘要： Provided is a protection circuit that is connected between a power supply terminal and an output terminal, and turns off an output transistor when an abnormality occurs in a system, the output transistor outputting a current to a load connected to the output terminal, the protection circuit including: a first discharge unit that is connected between a gate electrode of the output transistor and the power supply terminal, and discharges an electric charge of the gate electrode until a potential of the gate electrode becomes equal to a power supply potential, when an abnormality occurs in the system, and a second discharge unit that is connected between the gate electrode and a source electrode of the output transistor, and discharges the electric charge of the gate electrode until the potential of the gate electrode becomes equal to an output potential, when an abnormality occurs in the system.
摘要翻译：提供了一种连接在电源端子和输出端子之间的保护电路，并且在系统发生异常时关闭输出晶体管，输出晶体管向连接到输出端子的负载输出电流，保护电路包括：连接在输出晶体管的栅电极和电源端之间的第一放电单元，并且当栅电极的电位变得等于电源电位时，放电栅电极的电荷，当异常发生在系统中，以及第二放电单元，其连接在输出晶体管的栅电极和源电极之间，并且放电栅电极的电荷，直到栅电极的电位变得等于输出电位，当系统发生异常。

4. 发明授权

US07626792B2 Power supply control apparatus including highly-reliable overcurrent detecting circuit 有权
标题翻译：电源控制装置包括高度可靠的过电流检测电路
公开(公告)号：US07626792B2
公开(公告)日：2009-12-01
申请号：US10885045
申请日：2004-07-07
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02H3/08
CPC分类号： H02H3/087
摘要： In a power supply control apparatus for controlling supplying of power from a battery to a load including a battery terminal connectable to the battery, an output terminal connectable to the load, and a ground terminal, a transistor is connected between the battery terminal and the output terminal to turn ON and OFF a connection between the battery and the load. An overcurrent detecting circuit is connected between the battery terminal and the output terminal to detect whether or not an overcurrent has flown through the transistor. A control circuit is connected between the battery terminal and the ground terminal to activate the transistor and the overcurrent detecting circuit.
摘要翻译：在电源控制装置中，用于控制从电池供给包括可连接到电池的电池端子的负载，可连接到负载的输出端子和接地端子，在电池端子和输出端之间连接晶体管端子打开和关闭电池和负载之间的连接。在电池端子和输出端子之间连接有过电流检测电路，以检测过电流是否流过晶体管。控制电路连接在电池端子和接地端子之间以激活晶体管和过电流检测电路。

5. 发明申请

US20080013760A1 Switch element driver circuit and semiconductor device 失效
标题翻译：开关元件驱动电路和半导体器件
公开(公告)号：US20080013760A1
公开(公告)日：2008-01-17
申请号：US11808955
申请日：2007-06-14
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02B1/00
CPC分类号： H03K17/063 , H02M1/08 , H03K17/0822 , H03K17/162 , H03K17/18 , H03K17/687 , H03K2017/0806
摘要： Noise generation is reduced further. Oscillation control circuit 11 generates a modulation signal modulating oscillation frequency of an oscillation signal generated by oscillation circuit 12 and outputs modulation signal to same. Preferably, the modulation signal fluctuates period of the oscillation signal sequentially. The oscillation circuit 12 is composed of a ring oscillator, for example, and the power supply voltage or power supply current of the ring oscillator is controlled to fluctuate sequentially by the modulation signal output from the oscillation circuit 11. Buffer 14 of charge pump circuit 13 generates signals/Φ and Φ by the oscillation signal and drives capacitors C1 and C2 for supplying a higher voltage than the voltage of the power supply Vcc to gate of N-channel MOSFET Q1.
摘要翻译：噪声产生进一步降低。振荡控制电路11产生调制振荡电路12产生的振荡信号的振荡频率的调制信号，并输出调制信号。优选地，调制信号顺序地振荡振荡信号的周期。振荡电路12例如由环形振荡器构成，并且环状振荡器的电源电压或电源电流被控制为通过从振荡电路11输出的调制信号顺序地波动。电荷泵电路13的缓冲器14 通过振荡信号产生信号/ Phi和Phi，并驱动电容器C 1和C 2，以向N沟道MOSFET Q 1的栅极提供比电源Vcc的电压更高的电压。

6. 发明授权

US07310025B2 Oscillator circuit and integrated circuit incorporating the same 有权
标题翻译：振荡器电路和集成电路
公开(公告)号：US07310025B2
公开(公告)日：2007-12-18
申请号：US11475009
申请日：2006-06-27
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02H7/18 , H02H3/08
CPC分类号： H03K3/0231 , H03K17/0822
摘要： The oscillator circuit comprises a capacitor and first to fourth constant current supplies and switches are connected to the capacitor. Both terminals of the capacitor are used for charges and discharges. One period comprises four steps; charging the first terminal of the capacitor, discharging the second terminal, charging the first terminal, and discharging the second terminal.
摘要翻译：振荡器电路包括电容器，第一至第四恒流源和开关连接到电容器。电容器的两端都用于充放电。一个时期包括四个步骤; 对电容器的第一端子充电，对第二端子进行放电，对第一端子充电，以及对第二端子进行放电。

7. 发明申请

US20060038584A1 Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：US20060038584A1
公开(公告)日：2006-02-23
申请号：US11206045
申请日：2005-08-18
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H03K19/003
CPC分类号： H03K17/0822 , H03K17/063 , H03K2017/0806
摘要： The semiconductor device according to the present invention comprises an output MOS transistor M0, an MOS transistor M3 connected between a gate G1 of the output MOS transistor M0 and a ground voltage GND, a parasitic transistor Tr1 which is formed in parallel with the MOS transistor M3 with the substrate terminal of the MOS transistor M3 as a base, and a parasitic transistor control circuit for controlling the conducting status of the parasitic transistor Tr1 based on the power supply voltage Vcc.
摘要翻译：根据本发明的半导体器件包括输出MOS晶体管M 0，连接在输出MOS晶体管M 0的栅极G 1与接地电压GND之间的MOS晶体管M 3，并联形成的寄生晶体管Tr 1 以MOS晶体管M 3的基极端子为基础的MOS晶体管M 3和用于基于电源电压Vcc来控制寄生晶体管Tr 1的导通状态的寄生晶体管控制电路。

8. 发明授权

US06580236B2 Brushless motor drive circuit having low noise and high efficiency 有权
公开(公告)号：US06580236B2
公开(公告)日：2003-06-17
申请号：US09971924
申请日：2001-10-09
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02P118
CPC分类号： H02P6/10 , H02P6/182 , H02P2209/07 , Y10S388/923
摘要： A motor drive circuit for driving a brushless motor having a rotor and exciting coils of respective phases. A square wave rotor position signal for each phase is produced wherein a half period of the rotor position signal corresponds to a time period from a polarity inversion of an induced voltage of the exciting coil to the next polarity inversion of the induced voltage. Based on the rotor position signal, excitation of the exciting coils is performed by controlling switching elements for conducting excitation currents by using square wave on-control and/or pulse width converted square wave pulse width modulation (PWM) control. A pulse width converted sinusoidal wave PWM signal is generated whose pulse width varies according to a sinusoidal function. Excitation of the exciting coils is controlled based on the pulse width converted sinusoidal wave PWM signal immediately before and after the square wave on-controlled portions and/or the pulse width converted square wave PWM controlled portions.

9. 发明申请

US20090219661A1 Power switching circuit 有权
标题翻译：电源开关电路
公开(公告)号：US20090219661A1
公开(公告)日：2009-09-03
申请号：US12379730
申请日：2009-02-27
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H02H3/24
CPC分类号： H03K17/0822 , H03K17/284
摘要： A power switching circuit according to an exemplary embodiment of the present invention includes an output transistor connected between a power supply terminal VCC and an output terminal OUT, an output controller which controls a conducting state of the output transistor according to an input signal, a sense transistor having a gate commonly connected with the output transistor, which detects an output current flowing into the output transistor, an output current detection terminal in which a detection voltage is generated according to the output current detected by the sense transistor and a short circuit detector which detects a short circuit condition of the output current detection terminal according to the detection voltage and stops the output transistor or limits the output current.
摘要翻译：根据本发明的示例性实施例的功率开关电路包括连接在电源端子VCC和输出端子OUT之间的输出晶体管，输出控制器，其根据输入信号控制输出晶体管的导通状态，感测晶体管，其具有与输出晶体管公共连接的栅极，其检测流入输出晶体管的输出电流;输出电流检测端子，其中根据由感测晶体管检测的输出电流产生检测电压;以及短路检测器，根据检测电压检测输出电流检测端子的短路状况，停止输出晶体管或限制输出电流。

10. 发明申请

US20060284692A1 Oscillator circuit and integrated circuit incorporating the same 有权
标题翻译：振荡器电路和集成电路
公开(公告)号：US20060284692A1
公开(公告)日：2006-12-21
申请号：US11475009
申请日：2006-06-27
申请人： Tsuyoshi Mitsuda
发明人： Tsuyoshi Mitsuda
IPC分类号： H03B5/12
CPC分类号： H03K3/0231 , H03K17/0822
摘要： The oscillator circuit comprises a capacitor and first to fourth constant current supplies and switches are connected to the capacitor. Both terminals of the capacitor are used for charges and discharges. One period comprises four steps; charging the first terminal of the capacitor, discharging the second terminal, charging the first terminal, and discharging the second terminal.
摘要翻译：振荡器电路包括电容器，第一至第四恒流源和开关连接到电容器。电容器的两端都用于充放电。一个时期包括四个步骤; 对电容器的第一端子充电，对第二端子进行放电，对第一端子充电，以及对第二端子进行放电。

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