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61. 发明专利

PL271739A3 CIRCUITRY FOR STABILIZING RMV OF A RECTANGULARY ALTERNATING VOLTAGE 未知
公开(公告)号：PL271739A3
公开(公告)日：1989-10-16
申请号：PL27173988
申请日：1988-04-08
申请人： POLITECHNIKA SZCZECINSKA
发明人： CZAJKOWSKI MIROSLAW , CZAJKOWSKI GRZEGORZ
IPC分类号： G05F20060101 , G05F1/652 , G05F

62. 发明专利

PL240724A1 TRANSISTOR DRIVING NETWORK 未知
公开(公告)号：PL240724A1
公开(公告)日：1984-08-27
申请号：PL24072483
申请日：1983-02-23
申请人： POLITECHNIKA WARSZAWSKA
发明人： ZALOGA RYSZARD , MIECIELICA MIROSLAW
IPC分类号： G05F1/652 , H02M5/293 , H03G20060101 , H03G

63. 发明专利

SU1073763A1 METHOD OF AUTOMATIC CONTROL OF SOURCE CURRENT 未知
公开(公告)号：SU1073763A1
公开(公告)日：1984-02-15
申请号：SU3480556
申请日：1982-08-11
申请人： KD OTDEL VNII ISTOCHNIKOV
发明人： MOISEENKO EVGENIJ T , STASHEVSKIJ VLADIMIR I
IPC分类号： G05F1/652 , G01R35/00 , G05F1/60

64. 发明专利

GB1125678A Automatic volume control 未知
公开(公告)号：GB1125678A
公开(公告)日：1968-08-28
申请号：GB582467
申请日：1967-02-07
申请人： WILLIAM ROSS AIKEN
IPC分类号： G05F1/12 , G05F1/44 , G05F1/652 , H03G1/00 , H03G3/20 , H03G3/30 , H03G7/06 , H03G11/02
摘要： 1,125,678. Automatic volume control. W. R. AIKEN. 7 Feb., 1967, No. 5824/67. Heading H4R. An automatic volume control arrangement 10 comprises a line 14 to which is applied an input such as a speech signal 42; a variable attenuator constituted by a fixed resistor 12 and a photo-sensitive resistor 16; an output line 20; a lamp 22 for illuminating the resistor 16; a power circuit for the lamp 22 including a transistor 24 which is regulated, in response to output variations, by a first control signal derived from the output line 20 by way of a potentiometer 30, a rectifier having a tansistor 32, and a line 33; and a circuit, including the series connection of a resistor 40 and a capacitor 40, from which is derived a second control signal of lesser value than the first, this second signal being held at the control transistor 24 for a predetermined duration upon decline of the said first control voltage. In operation, when the input signal increases suddenly the first control voltage likewise increases suddenly to cause transistor 24 to conduct strongly, whereby the brightness of the lamp rapidly increases and the output is attenuated; the control current surge also charges capacitor 36, but because of the presence of resistor 40, the capcitor voltage will not reach the magnitude of the first control voltage. After the output signal has dropped to its desired level, the initial surge of control current disappears, but the capacitor 36 then discharges and maintains a somewhat lower and gradually decreasing control voltage at the base of transistor 24 so that the flow of current through the lamp 22 is maintained for a limited time at the level required to hold the output within the desired limits, thereby preventing premature release of the control exercised on the input signal. A rheostat 26, is connected across the collector/emitter circuit of transistor 24 and is so adjusted that the lamp 22 is held on the threshold of illumination when no control signal is present on the base of the transistor.

65. 发明专利

DE960298C 未知
公开(公告)号：DE960298C
公开(公告)日：1957-03-21
申请号：DEN0009892
申请日：1954-12-14
申请人： PHILIPS NV
发明人： FENEMORE RONALD WILLIAM , COATES LEONARD
IPC分类号： G05F1/648 , G05F1/652

66. 发明专利

DE924222C 未知
公开(公告)号：DE924222C
公开(公告)日：1955-02-28
申请号：DEP0003216
申请日：1942-06-14
申请人： PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH
发明人： BERG HARRY
IPC分类号： G05F1/652

67. 发明授权

EP1280384B1 Dimm-Modul 有权
标题翻译：调光模块
公开(公告)号：EP1280384B1
公开(公告)日：2008-07-16
申请号：EP02011283.5
申请日：2002-05-22
申请人： Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
发明人： Scilla, Giovanni
IPC分类号： H05B39/04 , G05F1/652
CPC分类号： H05B39/047 , Y02B20/144

68. 发明公开

EP1127478A2 BALLAST POWER CONTROL CIRCUIT 审中-公开
标题翻译：功率控制电路的镇流器
公开(公告)号：EP1127478A2
公开(公告)日：2001-08-29
申请号：EP99948479.3
申请日：1999-09-28
申请人： Electro-Mag International Inc.
发明人： MOISIN, Mihail, S.
IPC分类号： H05B41/39 , H05B41/392 , H05B41/40 , G05F1/652 , G05F1/12
CPC分类号： G05F1/12 , G05F1/652 , H05B37/0263 , H05B41/39 , H05B41/3921 , H05B41/40
摘要： A ballast circuit for energizing a lamp includes an inductive element coupled to an input terminal and a capacitive element coupled to the inductive element in parallel with the lamp. In one embodiment, the capacitive element includes a plurality of capacitors each of which is coupled in series with a switch to control the total capacitance provided by the capacitors. By controlling the total capacitance, the intensity of light emitted by the lamp can be selected. In another embodiment, a switching element is coupled across one of the capacitors for providing a selected capacitance to the circuit for controlling the lamp light intensity. In a further embodiment, a transformer has a first winding coupled in series with the capacitive element with the inductive impedance of the first winding being controlled via a second transformer winding coupled to a control circuit. In another embodiment, a ballast circuit includes a transformer for introducing a series current into the circuit for subsequent detection by a detection circuit. This arrangement can be used to send a data signal from one point in the circuit to another which can be used to determine a lamp light intensity level.

69. 发明公开

EP0924120A3 Einspeiseschaltung für ein Mehrsystem-Triebfahrzeug 审中-公开
标题翻译：多系统机车的馈入电路
公开(公告)号：EP0924120A3
公开(公告)日：1999-07-07
申请号：EP98123193.9
申请日：1998-12-04
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Budig, Olaf Dipl.-Ing.
IPC分类号： B60L9/22 , H02M7/521 , H02P7/63 , G05F1/652
CPC分类号： B60L9/30 , B60L2200/26 , B60L2210/30 , Y02T10/7241
摘要： Bei einem ersten Umrichter (1) und einem zweiten Umrichter (2), die jeweils einen Eingangsstromrichter (3, 4) sowie einen Teil-Zwischenkreis (5, 6) mit einem Zwischenkreis-Kondensator (7, 8) und einen motorseitigen Stromrichter umfassen, sind im AC-Betrieb die Teil-Zwischenkreise (5, 6) parallelgeschaltet und die Eingangsstromrichter (3, 4) jeweils an eine Sekundär-Teilwicklung (11, 12) eines Traktionstransformators geschaltet, der primärseitig an ein Wechselspannungsnetz geschaltet ist, und beiden Zwischenkreis-Kondensatoren (7, 8) ist ein Saugkreis (21) parallelgeschaltet, der aus einem Saugkreis-Kondensator (22) und einer dazu in Reihe geschalteten Saugkreisdrossel (23) besteht, und im DC-Betrieb sind die Teil-Zwischenkreise (5, 6) über Stellerdrosseln (25, 26, 28, 29) in Reihe geschaltet, die Eingangs stromrichter (3, 4) wirken als Gleichstromsteller und die Saugkreisdrossel (23) ist durch Reihenschaltung mit einer Netzdrossel (30) zu einem Eingangs filter geschaltet, dessen Eingangsfilterkapazität vom Saugkreiskondensator (22) gebildet wird.
摘要翻译：在第一反相器（1）和第二反相器（2），每一个都具有输入功率转换器（3，4）和部分中间电路（5,6）具有中间电路电容器（7，8）和一个马达侧功率转换器包括部分中间电路（5,6）并联连接，并且该输入转换器（3，4）各自连接到一个牵引变压器的次要子绕组（11，12）连接时，初级侧连接到在AC操作的交流电压网络，以及两个中程电容器（7,8）是并联连接的串联谐振电路（21），由一个串联谐振电路电容器（22）和一个串联连接的Saugkreisdrossel（23），并且在DC操作，部分中间电路（5,6）经由控制器节流阀（25，26，28，29）串联连接，输入功率转换器（3，4）充当一个DC-DC转换器和所述Saugkreisdrossel（23）连接的一系列电路，包括一个扼流圈（30）连接到输入滤波器，所述一个通道过滤器容量由Saugkreiskondensator（22）形成。

70. 发明公开

EP2289143A4 IMPEDANCE CORRECTION 有权转让
标题翻译：阻抗修正
公开(公告)号：EP2289143A4
公开(公告)日：2014-09-24
申请号：EP08769755
申请日：2008-05-28
申请人： HEWLETT PACKARD DEVELOPMENT CO
发明人： BABB SAMUEL M
IPC分类号： H02J3/14 , G05F1/652 , G05F5/00 , H02M3/04 , H03H19/00
CPC分类号： H03H19/008 , H02M3/156
摘要： One embodiment of an impedance stabilizer for use with a switching voltage regulator supplied by a source of an electrical voltage has an impedance and a switch controllable to permit current from a source to flow through the impedance. Control circuitry to operate the switch cyclically with a controlled duty cycle is responsive to variations in the voltage of the source having a frequency lower than a cycle rate of the switch to increase the duty cycle of the switch as the voltage of the source increases.

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