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公开(公告)号：US3684898A
公开(公告)日：1972-08-15
申请号：US3684898D
申请日：1971-03-29
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER
CPC classification number: H01F29/02 , H03K17/72 , H03K17/79 , Y10T307/773
Abstract: A drive circuit for gating controllable rectifiers. Two channels are used, one for the transfer of the energy for the gate signal and its associated switching components, the other for the transfer of the timing sequence information to control the gate drive circuit. The energy channel uses current transformers operating back-to-back to transfer the energy to the gate drive circuit. The control channel employs a photosensitive diode which is irradiated by a light source to control the gate drive circuit.
Abstract translation: 用于选通可控整流器的驱动电路。 使用两个通道，一个用于传递门信号及其相关联的开关组件的能量，另一个用于传送定时序列信息以控制栅极驱动电路。 能量通道使用背靠背工作的电流互感器将能量传输到栅极驱动电路。 控制通道采用由光源照射的光敏二极管来控制栅极驱动电路。
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Patent Agency Ranking
公开(公告)号：US3566148A
公开(公告)日：1971-02-23
申请号：US3566148D
申请日：1968-02-14
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER
CPC classification number: H03K17/73 , H02M7/5233 , H03K5/135 , H03K17/72
Abstract: The present disclosure relates to circuitry for generating an output pulse at a selected phase angle with respect to an alternating signal independent of the amplitude and frequency thereof. The circuit is ideally adapted for use in induction heating apparatus employing an inverter drive including controlled switching devices operative to supply an alternating signal to a tuned load including an induction heating coil. The circuit is operative to generate the output pulse by detecting, through peak detection for example, the substantial peak of the alternating signal and comparing, through an active device for example, a selected portion of the peak value with the instantaneous value of the alternating signal. An output pulse at the selected phase angle is provided when the compared signals bear a predetermined relationship with respect to each other.
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公开(公告)号：US3706024A
公开(公告)日：1972-12-12
申请号：US3706024D
申请日：1971-03-29
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER
CPC classification number: H01F29/02
Abstract: Tap changing apparatus including a transformer having a tapped winding, solid state switching elements connected between the winding and a load, and a control circuit which provides the proper gate drive to the switching elements for changing taps. The control circuit senses the voltage and current characteristics of the system to determine at what instant it will gate the switching elements in making a tap change. A tripper circuit senses the system current and trips the control circuit so that a tap change cannot be made when the system current is too low to have its characteristics detected.
Abstract translation: 分接变换装置包括具有抽头绕组的变压器，连接在绕组和负载之间的固态开关元件，以及向切换元件提供适当栅极驱动以改变抽头的控制电路。 控制电路感测系统的电压和电流特性，以确定何时将使开关元件进行抽头变换。 跳闸电路检测系统电流并跳闸控制电路，使得当系统电流太低而无法检测到其特性时，不能进行抽头变换。
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公开(公告)号：US3700925A
公开(公告)日：1972-10-24
申请号：US3700925D
申请日：1971-03-29
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER
CPC classification number: H01F29/04
Abstract: Tap changing arrangements comprising winding sections which are bridged by gate controlled switches which interconnect each winding section to aid, oppose or bypass other winding sections. The tap changing arrangements and switching sequences permit lower switch ratings without sacrificing performance.
Abstract translation: 分接变换装置包括由门控开关桥接的绕组部分，其互连每个绕组部分以辅助，相对或绕过其它绕组部分。 抽头改变布置和切换顺序允许较低的开关额定值而不牺牲性能。
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5.发明授权Electrical control apparatus using direction of current and power flow to gate switching devices 失效电流控制装置使用电流和功率流来选通开关装置
公开(公告)号：US3619765A
公开(公告)日：1971-11-09
申请号：US3619765D
申请日：1970-06-24
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER
Abstract: Electrical control apparatus including a transformer having a winding connectable in a power circuit which includes a source of alternating potential and a load circuit. The transformer winding includes at least two tap connections which are selectively connected into the power circuit with solid-state switching devices. The solid-state switching devices are gated at a firing angle responsive to an error signal. Tap-to-tap short circuits are obviated, regardless of the type of connected load, by firing control which senses the direction of instantaneous power flow, and the direction of instantaneous current flow in the power circuit.
Abstract translation: 电气控制装置，包括具有可连接在包括交变电位源的电源电路中的绕组的变压器和负载电路。 变压器绕组包括至少两个抽头连接，其选择性地连接到具有固态开关装置的电力电路中。 固态开关器件响应于误差信号而以点火角度门控。 通过触发瞬时功率流动方向的触发控制和电源电路中瞬时电流的方向，无论连接负载的类型如何，都可以避免点对点短路。
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公开(公告)号：US3558915A
公开(公告)日：1971-01-26
申请号：US3558915D
申请日：1968-03-01
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WOOD PETER , ROSA JOHN
CPC classification number: H03K17/73 , H02M7/5233 , H03K5/135 , H03K17/72
Abstract: The present disclosure relates to circuitry for generating output pulses at a selected phase angle with respect to an alternating signal, such as a sinusoid, independent of the amplitude and frequency thereof and wherein the alternating signal may vary over a wide range of amplitudes and frequencies. The pulse-generating circuit is ideally adapted for use in induction heating apparatus of the type which employs an inverter drive including controlled switching devices for supplying an alternating signal to a tuned load including an induction heating coil. The circuit is operative to generate the output pulses by detecting, through peak detection for example, the substantial peak of the alternating signal and comparing a selected portion of the peak value with the instantaneous value of the alternating signal. The comparison is made in a comparison stage, including for example an active device such as a transistor or plurality of transistors, with operating power for the comparison stage being supplied from a separate power supply independent of the alternating signal. An output pulse at the selected phase angle is provided when the compared signals bear a predetermined relationship with respect to each other.
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