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61. 发明授权

US5101334A High speed power supply circuit with circuit with positive feedback 失效
标题翻译：具有正反馈电路的高速电源电路
公开(公告)号：US5101334A
公开(公告)日：1992-03-31
申请号：US515998
申请日：1990-05-21
申请人： Joseph A. M. Plagge , Johannes E. Algra
发明人： Joseph A. M. Plagge , Johannes E. Algra
IPC分类号： H02J7/02 , H02M1/10 , H02M3/338
CPC分类号： H02M1/10 , H02J7/022 , H02M3/3385
摘要： A self-oscillating power supply circuit comprises a series arrangement of the primary winding (N.sub.1) of a transformer (TR), the main current path of a first semiconductor switch (T.sub.1) and a current measuring resistor (R.sub.1). The first semiconductor switch is driven by a second semiconductor switch (T.sub.2) which in turn is controlled by a comparator (CP). The voltage across the current measuring resistor is applied to the non-inverting input (6) of the comparator and, a reference voltage obtained from a reference voltage source (RS) is applied to the comparator inverting input (5). By arranging a capacitor (C.sub.2) between the output of the second semiconductor switch and the inverting input (5) of the comparator, the first semiconductor switch rapidly turns-off at the end of the forward phase at an accurately determined current through the primary winding. By applying a lower reference voltage to the comparator at a higher mains voltage, an output current is obtained from the transformer secondary winding (N.sub.2) for the load L, which is substantially independent of the mains voltage.
摘要翻译：自振荡电源电路包括变压器（TR）的初级绕组（N1），第一半导体开关（T1）的主电流路径和电流测量电阻器（R1）的串联布置。第一半导体开关由第二半导体开关（T2）驱动，第二半导体开关又由比较器（CP）控制。电流测量电阻上的电压被施加到比较器的非反相输入端（6），从参考电压源（RS）获得的参考电压被施加到比较器反相输入端（5）。通过在第二半导体开关的输出和比较器的反相输入端（5）之间布置电容器（C2），第一半导体开关在正相结束时以精确确定的电流通过初级绕组。通过在较高的电源电压下向比较器施加较低的参考电压，对于负载L从变压器次级绕组（N2）获得输出电流，其基本上与电源电压无关。

62. 发明授权

US4931918A Ringing choke converter 失效
标题翻译：振铃扼流圈转换器
公开(公告)号：US4931918A
公开(公告)日：1990-06-05
申请号：US377517
申请日：1989-07-10
申请人： Kiyoharu Inou , Yoshiaki Koide , Yasunobu Iwata
发明人： Kiyoharu Inou , Yoshiaki Koide , Yasunobu Iwata
IPC分类号： G05F1/38 , H02M3/338 , H03F9/02
CPC分类号： H03F9/02 , G05F1/38 , H02M3/3385
摘要： A ringing choke converter power supply device comprising a ringing choke converter power supply for stabilizing an output voltage by an indirect feedback system; a variable impedance element provided on a primary or secondary side of the power supply; and a control circuit for transmitting a control signal to the variable impedance element in such a direction that an error signal obtained by comparing the output voltage of the power supply with a predetermined reference voltage becomes zero. The variable impedance element, which is preferably a saturable reactor, is interposed between a voltage detection winding and a feedback diode or between the feedback diode and a capacitor when the element is provided on the primary side; and is interposed between a transformer secondary winding and a rectifier circuit, when the element is provided on the secondary side.
摘要翻译：一种振铃扼流圈转换器电源装置，包括用于通过间接反馈系统稳定输出电压的振铃扼流圈转换器电源; 设置在所述电源的一次侧或次侧的可变阻抗元件; 以及控制电路，用于将控制信号发送到可变阻抗元件，使得通过将电源的输出电压与预定参考电压进行比较而获得的误差信号变为零。优选可饱和电抗器的可变阻抗元件介于电压检测绕组和反馈二极管之间，或者当该元件设置在初级侧时，该反馈二极管与电容器之间; 并且当元件设置在次级侧时，插入在变压器次级绕组和整流电路之间。

63. 发明授权

US4864481A Regulator for isolated chassis power supply 失效
标题翻译：隔离式机箱电源调节器
公开(公告)号：US4864481A
公开(公告)日：1989-09-05
申请号：US926031
申请日：1986-10-31
申请人： Peter D. Osman
发明人： Peter D. Osman
IPC分类号： H04N5/63 , H02M3/338 , H02M3/335
CPC分类号： H02M3/3385
摘要： A switching-type power supply for a video apparatus includes regulating circuits that respond to both voltage and current information in order to generate pulse width modulated signals for the power supply switching device. The regulating circuits are electrically nonisolated from the output load circuits to provide direct feedback from one of the load circuit voltage supplies in order to effect accurate regulation of the supply voltage. Primary current flow information is provided via an electrically isolated winding such that all regulation circuitry is electrically nonisolated from the load circuit supplies.

64. 发明授权

US4652984A Self-oscillating power-supply circuit 失效
标题翻译：自振电源电路
公开(公告)号：US4652984A
公开(公告)日：1987-03-24
申请号：US736630
申请日：1985-05-20
申请人： Jouw van der Akker , Joseph A. M. Plagge
发明人： Jouw van der Akker , Joseph A. M. Plagge
IPC分类号： H02P7/29 , H02M3/28 , H02M3/338 , H02M3/335
CPC分类号： H02M3/3385
摘要： A circuit for energizing a load (10) with different input voltages comprises a transformer (6), having a primary winding (n.sub.1) in series with a switching transistor (T.sub.1) the load (10), and a current sensing resistor (R.sub.2) between the input terminals. The secondary winding (n.sub.2), in series with a diode (D.sub.1) connected is in parallel with the load. A starting resistor (R.sub.1) starts the circuit oscillating via a positive-feedback loop comprising, in series, a first resistor (R.sub.4), a capacitor (C.sub.1) and a second resistor (R.sub.5). This feedback loop is coupled between one end of the secondary winding and the base of the switching transistor. A control transistor (T.sub.2), whose base is connected to the current-sensing resistor (R.sub.2), turns off the switching transistor as a function of the primary current. The energy stored in the transformer is then delivered to the load by an output current in the secondary winding. This output current increases as the input voltage increases as a result of an increasing saturation of the switching transistor via the positive feedback. A zener diode (Z.sub.1) is coupled to the switching transistor so that, above a specific input voltage, the zener diode turns on and drains away the base current of the switching transistor so as to limit the output current.
摘要翻译：用于对具有不同输入电压的负载（10）供电的电路包括具有与负载（10）的开关晶体管（T1）串联的初级绕组（n1）的变压器（6）和电流感测电阻器（R2）在输入端子之间。与连接的二极管（D1）串联的次级绕组（n2）与负载并联。启动电阻器（R1）通过串联的第一电阻器（R4），电容器（C1）和第二电阻器（R5）的正反馈回路来启动电路振荡。该反馈回路耦合在次级绕组的一端和开关晶体管的基极之间。基极连接到电流检测电阻（R2）的控制晶体管（T2）根据初级电流关断开关晶体管。然后，存储在变压器中的能量通过次级绕组中的输出电流传送到负载。随着开关晶体管通过正反馈的饱和增加，输入电压增加，该输出电流增加。齐纳二极管（Z1）耦合到开关晶体管，使得在特定输入电压之上，齐纳二极管导通并且消耗开关晶体管的基极电流，从而限制输出电流。

65. 发明授权

US4649464A Dual operating mode switching power supply 失效
标题翻译：双工作模式开关电源
公开(公告)号：US4649464A
公开(公告)日：1987-03-10
申请号：US755764
申请日：1985-07-17
申请人： Masahiro Shono
发明人： Masahiro Shono
IPC分类号： H02J7/02 , H02M3/338 , H02M3/335
CPC分类号： H02M3/3385 , H02J7/022
摘要： A power supply circuit of switching regulator type includes a converter transformer defined by a first winding for receiving input power from a DC source and second winding for producing output power, a switching transistor for alternately making and breaking electric connection between the DC source and the first winding by alternate turn on and off operations of the switching transistor, and a rectifying circuit connected to the second winding for rectifying the output power. A power supply circuit further includes a first error detector for detecting a drift in the rectified output DC current and for producing a first control signal, a second error detector for detecting a drift in the rectified output DC voltage and for producing a second control signal, and a controller for controlling the on and off operations of the switching transistor based on either one of the first control signal and the second control signal so as to stabilize the rectified output power.
摘要翻译：开关稳压器型的电源电路包括由用于从DC源接收输入功率的第一绕组和用于产生输出功率的第二绕组限定的转换器变换器，用于交替地产生和断开DC源与第一组之间的电连接的开关晶体管通过开关晶体管的交替导通和截止操作来绕组，以及与第二绕组连接的整流电路，用于整流输出功率。电源电路还包括：第一误差检测器，用于检测整流输出DC电流的漂移和产生第一控制信号;第二误差检测器，用于检测整流输出直流电压的漂移并产生第二控制信号，以及控制器，用于基于第一控制信号和第二控制信号中的任一个来控制开关晶体管的导通和截止操作，以稳定整流输出功率。

66. 发明授权

US4617533A Circuit arrangement for a blocking oscillator switching power unit 失效
标题翻译：闭路振荡器开关电源单元的电路布置
公开(公告)号：US4617533A
公开(公告)日：1986-10-14
申请号：US701391
申请日：1985-02-14
申请人： Ernst Paulik
发明人： Ernst Paulik
IPC分类号： H02M1/00 , H02M1/36 , H02M3/338 , H03K3/16
CPC分类号： H02M1/36 , H02M3/3385
摘要： A blocking oscillator contains a switching transistor which is driven by an integrated circuit. This circuit receives its supply voltage during the blocking phase from a winding at the primary side. A further winding at the primary side supplies the regulating variable for the integrated circuit during the flow phase. The supply input of the integrated circuit is connected by way of a further transistor and a diode to the control winding and a Zener diode biases the base of the further transistor. In the start-up phase in which the voltage of the supply winding (control winding) is built up, the circuit supplies the required operating voltage and switches off again in the steady state of the power unit.
摘要翻译：阻塞振荡器包含由集成电路驱动的开关晶体管。该电路在阻挡阶段从初级侧的绕组接收其电源电压。初级侧的另一个绕组在流动阶段提供集成电路的调节变量。集成电路的电源输入通过另外的晶体管和二极管连接到控制绕组，并且齐纳二极管偏置另一个晶体管的基极。在供电绕组（控制绕组）的电压建立的启动阶段，电路提供所需的工作电压，并在电源单元的稳定状态下再次关断。

67. 发明授权

US4561047A Switching regulator current limit circuit 失效
标题翻译：开关稳压器限流电路
公开(公告)号：US4561047A
公开(公告)日：1985-12-24
申请号：US562892
申请日：1983-12-19
申请人： Robert P. DePuy
发明人： Robert P. DePuy
IPC分类号： H02M3/338 , H02H7/122
CPC分类号： H02M3/3385
摘要： A series flyback switching regulator, having a transformer with a primary coil for receiving an unregulated input voltage and a secondary coil for providing a regulated output voltage, includes a circuit for limiting the magnitude of a substantial overload or short circuit current. The current limiting circuit senses the magnitude of current flowing through the primary coil and sets a current limit level which is based upon a predetermined maximum current allowed in the primary coil. The current limiting circuit also senses the magnitude of the voltage present at the secondary coil of the transformer and reduces the current limit level, based upon a sensed reduction in the secondary coil voltage. The input voltage is removed from the primary coil when the magnitude of the current through the primary coil exceeds the current limit level as reduced by the sensed reduction of the voltage appearing across the secondary coil.
摘要翻译：具有用于接收未调节的输入电压的具有初级线圈的变压器和用于提供稳定的输出电压的次级线圈的串联回扫开关调节器包括用于限制实质的过载或短路电流的幅度的电路。电流限制电路检测流过初级线圈的电流的大小，并设定基于初级线圈中允许的预定最大电流的电流限制电平。电流限制电路还感测出存在于变压器的次级线圈处的电压的大小，并且基于感测到的次级线圈电压的降低来降低电流限制电平。当通过初级线圈的电流的大小超过由感测到的次级线圈上出现的电压的减小而减小的电流极限电平时，从初级线圈去除输入电压。

68. 发明授权

US4387418A Switching regulator 失效
标题翻译：开关稳压器
公开(公告)号：US4387418A
公开(公告)日：1983-06-07
申请号：US206970
申请日：1980-11-14
申请人： Tsutomu Koike
发明人： Tsutomu Koike
IPC分类号： H02M3/338 , H02M3/335
CPC分类号： H02M3/3385
摘要： A switching regulator is disclosed which is designed so that a negative feedback is applied to the base of a transistor constituting an oscillator adapted for chopping a DC voltage, only during a period of time which is required to effect pulse width control when the transistor is switched from conduction to non-conduction. A control circuit may also be provided which is arranged to compare the output of a current detecting circuit for detecting a current proportional to a current for driving a transformer with the output of an error voltage amplifier for amplifying an output resulting from comparison of a rectified version of the AC output of the transformer with a reference voltage. The foregoing control circuit is also arranged so that when the output of the current detecting circuit exceeds the output of the error amplifier, a trigger signal is imparted to cause the oscillator to be changed from the on state to the off state.
摘要翻译：公开了一种开关调节器，其被设计成仅在构成用于斩波DC电压的振荡器的晶体管的基极上施加负反馈时，仅在晶体管被切换时需要进行脉冲宽度控制的时间段期间从传导到非传导。还可以提供一种控制电路，其被配置为比较用于检测与用于驱动变压器的电流成比例的电流的电流检测电路的输出与误差电压放大器的输出，用于放大由整流版本的比较导致的输出的变压器的交流输出与参考电压。上述控制电路还被布置成使得当电流检测电路的输出超过误差放大器的输出时，施加触发信号以使振荡器从接通状态变为截止状态。

69. 发明授权

US4385347A Power supply 失效
标题翻译：电源
公开(公告)号：US4385347A
公开(公告)日：1983-05-24
申请号：US175777
申请日：1980-08-06
申请人： Yoshiyuki Takematsu
发明人： Yoshiyuki Takematsu
IPC分类号： H02M3/338 , H05B41/32 , H02M3/335
CPC分类号： H02M3/3385 , H05B41/32
摘要： This invention concerns a power supply arrangement which comprises a direct current power source circuit (A) including a battery (10), a voltage converter circuit (B) including an oscillator circuit (OC), an oscillating transformer (11) and an oscillation starting circuit (OS), a rectifier circuit (C) for rectifying said alternating current voltage to a direct current, and an oscillation stopping means (F) for stopping the current supplied from said battery to a load circuit member (D). The oscillator circuit (OC) includes an oscillating switching element (12) which has a high leak resistance, and the oscillation starting circuit includes a switch element (15) for starting the actuation of said voltage converter. In accordance with the power supply arrangement of the present invention, a power source switch is not required because the oscillator circuit is activated by supplying a momentary oscillation starting signal and because the voltage converter becomes deactivated by supplying a momentary oscillation stopping signal.
摘要翻译：本发明涉及一种电源装置，其包括直流电源电路（A），其包括电池（10），包括振荡电路（OC），振荡变压器（11）和振荡起动器的电压转换器电路（B）电路（OS），用于将所述交流电压整流为直流的整流电路（C）;以及用于将从所述电池供应的电流停止到负载电路部件（D）的振荡停止装置（F）。振荡电路（OC）包括具有高漏电阻的振荡开关元件（12），振荡起动电路包括用于启动所述电压转换器的启动的开关元件（15）。根据本发明的电源装置，不需要电源开关，因为通过提供瞬时振荡启动信号来激活振荡器电路，并且因为电压转换器通过提供瞬时振荡停止信号而被去激活。

70. 发明授权

US4384214A Non-interrupting power supplies for loads of less than 500 watts 失效
标题翻译：不间断电源，负载小于500瓦
公开(公告)号：US4384214A
公开(公告)日：1983-05-17
申请号：US289827
申请日：1981-08-03
申请人： Robert G. Crick , Michael J. Dewey , Larry P. Jamison
发明人： Robert G. Crick , Michael J. Dewey , Larry P. Jamison
IPC分类号： H02J9/06 , H02M3/338 , H01F1/00
CPC分类号： H02M3/3385 , H02J9/061 , H02M2001/0032 , Y02B70/16 , Y10T307/625
摘要： The distinguishing feature of so-called no break or non-interrupting power supplies over ordinary standby or emergency power systems is that no supply interruption (even momentary) occurs when the commercial power source fails or when commercial power again becomes available. This invention comprises a non-interrupting modular power supply system which can be configured for loads of from 15 to 100, watts or for 75 to 500 watts, respectively. The system combination supplies single or multiple regulated DC outputs meeting the requirements of the equipment being operated. A source of AC power is converted to DC for utilization by a load and for charging a back-up battery. When the source of AC power fails, the battery supplies power to the load. Means are provided to monitor the battery voltage to control its charging.
摘要翻译：普通待机或应急电源系统中所谓的无断电或不中断电源的显着特点是，当商用电源出现故障或商业电源可用时，不会发生电源中断（即使是瞬间）。本发明包括一个不间断的模块化电源系统，其可被配置为分别为15至100瓦特或75至500瓦特的负载。该系统组合提供满足正在运行的设备要求的单个或多个稳压直流输出。交流电源将转换为直流电，供负载使用，并为后备电池充电。当交流电源出现故障时，电池会向负载供电。提供了用于监测电池电压以控制其充电的装置。

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