专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09935580B2 Wien bridge oscillator 有权
公开(公告)号：US09935580B2
公开(公告)日：2018-04-03
申请号：US15251487
申请日：2016-08-30
申请人： Jabil Circuit, Inc.
发明人： Ronald Beebe , Christopher D. Compton , David Eckerson , Yizhe Liu , Salman Talebi
IPC分类号： H03B5/26 , H03B5/10 , H03B5/22 , H02M3/158 , H02M7/48 , H02M7/219
CPC分类号： H03B5/26 , H02M3/158 , H02M7/219 , H02M7/48 , H02M7/5387 , H02M7/53871 , H02M2001/0012 , H02M2001/0025 , H02M2001/0058 , H02M2007/2195 , H03B5/10 , H03B5/22 , Y02B70/1408
摘要： An oscillator circuit that includes a Wien bridge oscillator circuit, a full-wave rectifier circuit, coupled to an output of the Wien bridge oscillator circuit, an integrator circuit, coupled to an output of the full-wave rectifier circuit, and a multiplier circuit. The multiplier circuit may include a first input coupled to the output of the Wien bridge oscillator circuit, and a second input, coupled to an output of the integrator, wherein the multiple signals are configured to provide dynamic gain control to the Wien bridge oscillator circuit.

2. 发明授权

US08890633B2 Resonant circuit with automated trimming capabilities 有权
标题翻译：具有自动调整功能的谐振电路
公开(公告)号：US08890633B2
公开(公告)日：2014-11-18
申请号：US13719011
申请日：2012-12-18
申请人： NXP B.V.
发明人： Sven Simons
IPC分类号： H03B5/08 , H03L5/00 , H03J1/00 , H03J3/20 , H03J3/08 , H03J3/24 , H03B5/10 , H03B1/00
CPC分类号： H03L5/00 , H03B1/00 , H03B5/10 , H03J1/0008 , H03J3/08 , H03J3/20 , H03J3/24 , H03J2200/28
摘要： According to an example embodiment, a device includes a resonant circuit configured and arranged to provide a peak current flow at a resonance frequency. A trimming circuit provides variable impedances to the resonant circuit and thereby changes the resonance frequency for the resonant circuit. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. A switch circuit couples and decouples the driver circuit to the resonant circuit for driving the resonant circuit with the trimming signal. An amplitude detection circuit detects amplitudes for signals generated in response to the trimming signal being connected to the resonant circuit. A processing circuit correlates detected amplitudes from the amplitude detection circuit with different impedance values of the variable trimming circuit.
摘要翻译：根据示例性实施例，一种器件包括谐振电路，其被配置和布置成以谐振频率提供峰值电流。修整电路为谐振电路提供可变阻抗，从而改变谐振电路的谐振频率。驱动器电路被配置为产生以所需频率振荡的微调信号。开关电路将驱动电路耦合到谐振电路并将其去耦，以用修整信号来驱动谐振电路。振幅检测电路检测响应于连接到谐振电路的修整信号而产生的信号的幅度。处理电路使来自振幅检测电路的检测振幅与可变微调电路的不同阻抗值相关。

3. 发明授权

US08368479B2 VCO pre-compensation 有权
公开(公告)号：US08368479B2
公开(公告)日：2013-02-05
申请号：US12432777
申请日：2009-04-30
申请人： Christian Grewing , Stefan van Waasen , Anders Emericks
发明人： Christian Grewing , Stefan van Waasen , Anders Emericks
IPC分类号： H03B5/10
CPC分类号： H03L7/0995 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1265 , H03B2201/0208 , H03B2201/025 , H03J2200/10
摘要： A VCO device is described that has pre-compensation. Digitally switchable compensation capacitors are selectively activated to adjust operation of the VCO to mitigate undesirable operational effects. In some example embodiments, the digitally switchable compensation capacitors of the VCO are adjusted to compensate for the effects of activating (from a quiescent state) an output buffer driven by the VCO.

4. 发明授权

US4954792A Multi-grid electron tube high frequency power oscillator 失效
标题翻译：多格子电子管高频功率振荡器
公开(公告)号：US4954792A
公开(公告)日：1990-09-04
申请号：US394342
申请日：1989-08-15
申请人： Christian S. A. E. Patron
发明人： Christian S. A. E. Patron
IPC分类号： H03B1/02 , H03B5/10 , H05B6/04
CPC分类号： H05B6/04 , H03B5/10
摘要： A high-frequency power oscillator includes a tetrode electron tube (5), a current source (3) and a voltage-limiting circuit (4). The current source (3) is connected to the screen grid of the tetrode (5). This limits the screen grid current when the voltage on the anode of the tetrode (5) is momentarily lower than the screen grid voltage. Between the screen grid and the cathode of the tetrode the voltage-limiting circuit (4) is inserted. This circuit starts to conduct above a predetermined threshold value. This forms a limit to the screen grid voltage so that is is possible to operate the tetrode (5) in a pulsating manner. The voltage-limiting circuit may comprise a triode (4) with a voltage source (2) providing a constant voltage between the grid and the cathode of the triode (4).

5. 发明授权

US4761618A High-frequency heating generator comprising a multiple-grid electron tube 失效
标题翻译：包括多格子电子管的高频加热发生器
公开(公告)号：US4761618A
公开(公告)日：1988-08-02
申请号：US18679
申请日：1987-02-25
申请人： Christian S. A. E. Patron , Aart P. Huben
发明人： Christian S. A. E. Patron , Aart P. Huben
IPC分类号： H05B6/06 , H03B5/10 , H05B6/04 , H05B6/02
CPC分类号： H05B6/04
摘要： A high-frequency heating generator comprising a multi-grid electron tube 15 for use in industrial systems in the range of several kilowatts to a number of megawatts. In order to obtain an economic high-frequency generator, the electron tube 15 comprises at least two grids 152, 153; of which a first grid 153 is connected to a positive feedback circuit (15') of the oscillator circuit. A source of bias voltage may be supplied to the second grid 152. A low voltage control circuit (16) is connected to either the first (153) or second (152) grid, and the anode 151 is connected to a non-controlled d.c. power source (13, 14).
摘要翻译：一种高频加热发生器，包括用于工业系统的多格子电子管15，其数千瓦至数兆瓦。为了获得经济的高频发生器，电子管15包括至少两个栅极152,153; 其中第一栅极153连接到振荡器电路的正反馈电路（15'）。偏置电压源可以被提供给第二栅极152.低压控制电路（16）连接到第一栅极（153）或第二栅极（152），并且阳极151连接到非受控直流电压。电源（13,14）。

6. 发明授权

US3747013A Tuned-plate tuned-grid short wave signal generator with power output controlled by screen grid 失效
标题翻译：带屏幕网格控制的电源输出的调谐板调谐网短波信号发生器
公开(公告)号：US3747013A
公开(公告)日：1973-07-17
申请号：US3747013D
申请日：1971-09-02
申请人： METTLER H , METTLER L
发明人： METTLER H
IPC分类号： A61N1/40 , A61N5/00 , H03B5/10
CPC分类号： A61N1/403
摘要： A signal generator having a vacuum tube in a tuned plate, tuned grid oscillator circuit. A coil is placed in the tuned plate circuit for providing short wave signals. The tube has at least a control grid connected to the tuned grid circuit and a screen grid. A circuit is coupled to the screen grid for enabling a signal to be fed back from the plate circuit through the screen grid to the control grid and comprises an impedance for coupling the screen grid to a source of control signals for controlling the power delivered by the coil.
摘要翻译：信号发生器，其具有调谐板中的真空管，调谐电网振荡器电路。线圈被放置在调谐板电路中，用于提供短波信号。该管至少具有连接到调谐格栅电路和屏栅的控制电网。电路耦合到屏幕网格，以使得信号能够从板电路通过屏幕网格反馈到控制网格，并且包括用于将屏幕网格耦合到控制信号源的阻抗，用于控制由线圈

7. 发明授权

US3206597A Fluid analyzer and transducer circuit therefor 失效
标题翻译：流体分析仪及其换能器电路
公开(公告)号：US3206597A
公开(公告)日：1965-09-14
申请号：US22664362
申请日：1962-09-27
申请人： MINE SAFETY APPLIANCES CO
发明人： HOWARD FERTIG GLENN , BILLETDEAUX ADRIAN C
IPC分类号： H03B5/10
CPC分类号： H03B5/10

8. 发明授权

US3063022A Impedance matching circuit in an oscillator utilizing ganged inductors 失效
标题翻译：使用组合电感的振荡器中的阻抗匹配电路
公开(公告)号：US3063022A
公开(公告)日：1962-11-06
申请号：US11527361
申请日：1961-06-06
申请人： STIRRAT WILLIAM A
发明人： STIRRAT WILLIAM A
IPC分类号： H03B5/10
CPC分类号： H03B5/10

9. 发明授权

US2919413A Means for examining a substance 失效
标题翻译：检查物质的方法
公开(公告)号：US2919413A
公开(公告)日：1959-12-29
申请号：US60967156
申请日：1956-09-13
申请人： ASEA AB
发明人： CHARLES THOMAS G
IPC分类号： G01V3/10 , H03B5/10
CPC分类号： G01V3/102 , H03B5/10

10. 发明授权

US2908869A Stable oscillator 失效
公开(公告)号：US2908869A
公开(公告)日：1959-10-13
申请号：US70706258
申请日：1958-01-03
申请人： AVCO MFG CORP
发明人： HARTER WILLIAM R
IPC分类号： H03B5/10
CPC分类号： H03B5/10

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式