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1. 发明申请

US20180034364A1 DC/DC CONVERTER 有权
公开(公告)号：US20180034364A1
公开(公告)日：2018-02-01
申请号：US15637593
申请日：2017-06-29
申请人： Mitsubishi Electric Corporation
发明人： Mai NAKADA , Ryota KONDO , Matahiko IKEDA , Yuya TANAKA , Shingo KATO
IPC分类号： H02M3/142 , H02M3/139 , H02M3/18 , H02M3/07
CPC分类号： H02M3/142 , H02M3/07 , H02M3/139 , H02M3/158 , H02M3/1582 , H02M3/18 , H02M2003/1586
摘要： To provide a DC/DC converter which does not need to switch a change direction of a control value depending on a power transmission direction between low voltage side and high voltage side, and can control a voltage of a charge and discharge capacitor. A DC/DC converter which controls voltage of a charge and discharge capacitor by a controller that performs a Δduty control which changes an ON duty ratio difference of semiconductor circuits, and a phase shift control which changes a phase difference of an ON period of semiconductor circuits.

2. 发明申请

US20120091979A1 HIGH GAIN DC TRANSFORMER 审中-公开
标题翻译：高增益直流变压器
公开(公告)号：US20120091979A1
公开(公告)日：2012-04-19
申请号：US12747662
申请日：2008-12-02
申请人： Dragan Jovcic
发明人： Dragan Jovcic
IPC分类号： H02M3/142
CPC分类号： H02M3/142
摘要： A DC-DC power converter circuit (20) is provided for transferring power between low voltage terminals and high voltage terminals. The circuit comprises an inductor (Lr) and a capacitor (Cr) provided across the low voltage terminals, the capacitor being provided in parallel with the high voltage terminals. The circuit further comprises a plurality of switches (T1 to T4) for switching the polarity of the capacitor in the circuit, and a controller for controlling the switching of the capacitor to repeatedly switch the polarity of the capacitor at a switching frequency f, such that, in use, and other than at the instant of switching, the switched capacitor produces an increasing voltage at the high voltage side of the inductor. A connection device (D2) is provided for repeatedly connecting the high voltage terminals to the switched capacitor at substantially the switching frequency f to enable current flow between the switched capacitor and the high voltage terminals.
摘要翻译：提供DC-DC电力转换器电路（20），用于在低电压端子和高电压端子之间传输电力。电路包括设置在低电压端子两端的电感器（Lr）和电容器（Cr），电容器与高电压端子并联设置。电路还包括用于切换电路中的电容器的极性的多个开关（T1至T4），以及控制器，用于控制电容器的开关以重复地以开关频率f切换电容器的极性，使得，在使用中，并且在切换时刻之外，开关电容器在电感器的高压侧产生增加的电压。提供一个连接装置（D2），用于以基本上开关频率f重复地将高压端子连接到开关电容器，以使开关电容器和高压端子之间的电流流动。

3. 发明授权

US5124629A Post regulation circuit with energy storage 失效
标题翻译：具有储能的后期调节电路
公开(公告)号：US5124629A
公开(公告)日：1992-06-23
申请号：US689565
申请日：1991-04-23
申请人： Don G. Ball , Daniel L. Birx , Edward G. Cook
发明人： Don G. Ball , Daniel L. Birx , Edward G. Cook
IPC分类号： H02M3/142 , H02M9/02
CPC分类号： H02M3/142
摘要： A charge regulation circuit provides regulation of an unregulated voltage supply and provides energy storage. The charge regulation circuit according to the present invention provides energy storage without unnecessary dissipation of energy through a resistor as in prior art approaches.
摘要翻译：充电调节电路提供调节不稳定的电压源并提供能量存储。根据本发明的电荷调节电路如现有技术方法那样提供能量存储，而不需要通过电阻器的能量耗散。

4. 发明授权

US4882665A High frequency, high power, power supply 失效
标题翻译：高频，高功率，电源
公开(公告)号：US4882665A
公开(公告)日：1989-11-21
申请号：US205236
申请日：1988-06-10
申请人： Keh-Kun Choi , Hyeong I. Choi
发明人： Keh-Kun Choi , Hyeong I. Choi
IPC分类号： H02M3/142 , H02M9/04
CPC分类号： H02M3/142
摘要： A pulse high frequency power supply includes a plurality of power supply branches connected between the input and the output of the supply. Each power supplying branch includes a capacitor which can be charged by a first silicon-controlled rectifier and subsequently discharged by a second silicon-controlled rectifier. A control circuit, which can include a microcomputer, generates sequences of pulses to charge each storage capacitor in each branch at a predetermined time and to discharge each charged capacitor thereby providing a plurality of temporally spaced-apart current pulses to the load.
摘要翻译：脉冲高频电源包括连接在电源的输入和输出之间的多个电源分支。每个供电支路包括可由第一硅可控整流器充电并随后由第二可硅可控整流器放电的电容器。可以包括微计算机的控制电路产生脉冲序列，以在预定时间内对每个分支中的每个存储电容器进行充电，并且对每个充电的电容器进行放电，从而向负载提供多个时间间隔开的电流脉冲。

5. 发明授权

US3496444A Voltage converter circuits 失效
标题翻译：电压转换器电路
公开(公告)号：US3496444A
公开(公告)日：1970-02-17
申请号：US3496444D
申请日：1967-12-26
申请人： WESTINGHOUSE BRAKE & SIGNAL
发明人： KING KENNETH G , BURCH DEREK E
IPC分类号： H02M3/142 , H02M3/22 , H02M5/40
CPC分类号： H02M3/142

6. 发明授权

US3445752A Direct current regulated power supply 失效
标题翻译：直流电流调节电源
公开(公告)号：US3445752A
公开(公告)日：1969-05-20
申请号：US3445752D
申请日：1966-07-15
申请人： PATELHOLD PATENTVERTUNGS UND E
发明人： HORVAT IVAN
IPC分类号： H02M3/139 , H02M3/142 , G05F1/40 , G05F1/52 , G05F1/60
CPC分类号： H02M3/139 , H02M3/142

7. 发明授权

US3215925A Voltage regulator 失效
公开(公告)号：US3215925A
公开(公告)日：1965-11-02
申请号：US14650061
申请日：1961-10-20
申请人： BELL TELEPHONE LABOR INC
发明人： RIEKE JOHN W
IPC分类号： H02M3/142
CPC分类号： H02M3/142

8. 发明申请

US20170093278A1 Circuit and Method for Maximum Duty Cycle Limitation in Step Up Converters 有权
公开(公告)号：US20170093278A1
公开(公告)日：2017-03-30
申请号：US14870133
申请日：2015-09-30
申请人： Dialog Semiconductor (UK) Limited
发明人： Naoyuki Unno , Kemal Ozanoglu , Pier Cavallini , Louis de Marco
IPC分类号： H02M3/156
CPC分类号： H02M3/156 , H02M1/32 , H02M3/137 , H02M3/142 , H02M3/155 , H02M3/158 , H02M3/1582
摘要： An adaptive duty cycle limiting circuit is used with a switching DC-to-DC converter for preventing the duty cycle entering a region of operation having negative gain. The adaptive duty cycle limiting circuit includes a duty cycle ramp signal generator, a voltage source for providing a voltage having a fractional value of an input voltage source, and a comparator that compares the duty cycle ramp signal with the fractional value of the input voltage source. When the voltage level of the duty cycle ramp signal is less than the fractional value of the voltage source, a cycle limit signal is activated and communicated to a switching control circuit to adjust the duty cycle of the switching DC-to-DC converter to prevent the duty cycle entering the region of operation where the gain of the switching DC-to-DC converter becomes negative.

9. 发明授权

US09500696B2 Test circuit for thyristor valve in HVDC system 有权
标题翻译： HVDC系统中晶闸管阀的测试电路
公开(公告)号：US09500696B2
公开(公告)日：2016-11-22
申请号：US14323837
申请日：2014-07-03
申请人： LSIS CO., LTD.
发明人： Jun Bum Kwon , Teag Sun Jung , Seung Taek Baek , Wook Hwa Lee , Yong Ho Chung
IPC分类号： G01R31/26 , H02J3/36
CPC分类号： G01R31/263 , G01R31/3336 , H02J3/36 , H02M3/142 , H02M5/4505 , H02M7/08 , Y02E60/60
摘要： Provided is a synthetic test circuit for synthetic-testing a thyristor valve in high voltage direct current (HVDC). A resonant circuit applies forward DC current, a reverse DC voltage, and a forward DC voltage to synthetic-test the thyristor valve. A current generation unit generates DC current that is above a reference current value to supply the generated DC current into the resonant circuit. A voltage generates unit generating a DC voltage that is above a reference voltage value to supply the generated DC voltage into the resonant circuit. The resonant circuit includes a charging auxiliary valve for charging a gate driver of the thyristor valve.
摘要翻译：提供了一种用于合成测试高压直流（HVDC）中的晶闸管阀的合成测试电路。谐振电路施加正向直流电流，反向直流电压和正向直流电压，以综合测试晶闸管阀。电流产生单元产生高于参考电流值的DC电流，以将所产生的DC电流提供给谐振电路。电压产生产生高于参考电压值的直流电压的单元，以将所产生的直流电压提供给谐振电路。谐振电路包括用于对晶闸管阀的栅极驱动器充电的充电辅助阀。

10. 发明授权

US08471414B2 Low impedance polarity conversion circuit 有权
标题翻译：低阻极性转换电路
公开(公告)号：US08471414B2
公开(公告)日：2013-06-25
申请号：US11993701
申请日：2006-06-23
申请人： Timothy D. F. Ford , Bernard Moffett
发明人： Timothy D. F. Ford , Bernard Moffett
IPC分类号： H02J1/00
CPC分类号： H03K3/012 , H02J7/0034 , H02M1/10 , H02M3/142 , Y10T307/50 , Y10T307/839
摘要： A low impedance polarity conversion circuit for driving a load with a DC power source is disclosed. The DC power source has a first pole from which a first DC signal originates and a second pole from which a second DC signal originates. The first DC signal has a voltage greater than a voltage of the second DC signal. The conversion circuit includes a circuit output node through which an output DC signal is delivered from the conversion circuit to the load. The conversion circuit also includes a charge conditioning circuit for generating third and fourth DC signals. The third DC signal has a voltage greater than the first DC signal voltage and the fourth DC signal has a voltage less than the second DC signal voltage. A rectification circuit includes first and second inputs for attachment to the first pole and the second pole. A Field-Effect Transistor (FET) bridge is electrically connected to the first and second inputs. The FET bridge includes first and second pairs of cooperating FETs. The third voltage controls a first of the first pair of FETs and a first of the second pair of FETs. The fourth voltage controls a second of the first pair of FETs and a second of the second pair of FETs. The FET bridge is for rectifying the first and second DC signals in order that the output DC signal is the same polarity irrespective of whether the first input is attached to the first pole or the second pole.
摘要翻译：公开了一种用直流电源驱动负载的低阻极性转换电路。直流电源具有从其起始的第一直流信号的第一极和来自第二直流信号的第二极。第一直流信号的电压大于第二直流信号的电压。转换电路包括电路输出节点，通过该电路输出节点将输出DC信号从转换电路传送到负载。转换电路还包括用于产生第三和第四DC信号的电荷调节电路。第三直流信号的电压大于第一直流信号电压，第四直流信号的电压小于第二直流信号电压。整流电路包括用于连接到第一极和第二极的第一和第二输入。场效应晶体管（FET）桥与第一和第二输入电连接。 FET桥包括第一和第二对配合FET。第三电压控制第一对FET中的第一个和第二对FET中的第一对。第四电压控制第一对FET中的第二个和第二对FET中的第二对。 FET桥用于整流第一和第二DC信号，以便输出DC信号是相同的极性，而不管第一输入是连接到第一极还是第二极。

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