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1. 发明申请

WO2010028431A1 RIBBON LOUDSPEAKER MODULE AND AMPLIFIER THEREFORE 审中-公开
标题翻译： RIBBON扬声器模块和放大器
公开(公告)号：WO2010028431A1
公开(公告)日：2010-03-18
申请号：PCT/AU2009/001175
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO (PTY) LTD , THOMAS, Clive , SAVAGE, Paul
发明人： THOMAS, Clive
IPC分类号： H04R9/04 , H04R9/06
CPC分类号： H04R3/08 , H04R9/048
摘要： A ribbon loudspeaker module includes a ribbon element of electrically conductive material and having a resistance of less than 1Ω and a magnetic system arranged to create a magnetic field about the ribbon element. A buffer amplifier having an input is arranged to receive a loudspeaker drive signal from an audio power amplifier and an output arranged to drive the ribbon element directly. The ribbon loudspeaker module is preferably a low frequency module, designed to handle audio signals below 5kHz, and preferably in the range 20Hz to 3kHz or a part thereof. The ribbon element may have a resistance of less than 0.5Ω, less than 0.2Ω and even as little as 0.15Ω or less.
摘要翻译：带式扬声器模块包括导电材料的带状元件并且具有小于10的电阻和布置成围绕带状元件产生磁场的磁性系统。具有输入的缓冲放大器布置成从音频功率放大器接收扬声器驱动信号，并且布置成直接驱动色带元件的输出。带状扬声器模块优选地是低频模块，其被设计为处理低于5kHz，优选在20Hz至3kHz范围内的音频信号或其一部分。带状元件可以具有小于0.5O，小于0.2O，甚至低至0.15O或更小的电阻。

2. 发明申请

WO2010028430A1 HIGH VOLTAGE REGULATED POWER SUPPLY 审中-公开
标题翻译：高电压调节电源
公开(公告)号：WO2010028430A1
公开(公告)日：2010-03-18
申请号：PCT/AU2009/001174
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO (PTY) LTD , THOMAS, Clive , SAVAGE, Paul
发明人： THOMAS, Clive
IPC分类号： H03F1/02 , G05F1/66
CPC分类号： H03F3/45475 , G05F1/56 , H03F3/45085 , H03F2200/78 , H03F2203/45102 , H03F2203/45116 , H03F2203/45136 , H03F2203/45142 , H03F2203/45158 , H03F2203/45188 , H03F2203/45322 , H03F2203/45512 , H03F2203/45518 , H03F2203/45568 , H03F2203/45646 , H03F2203/45676
摘要： A regulated power supply circuit includes a voltage reference circuit arranged to generate a reference voltage and an output device responsive to a control signal to supply a load from a voltage source. A control circuit is arranged to compare an output voltage at the load with the reference voltage. The control circuit includes a comparator comprising a long-tailed transistor pair having a first input to which the reference voltage is applied, a second input to which the output voltage is applied, and an output connected to an input terminal of the output device. The control circuit applies a correction signal to the output device via a single semiconductor junction to regulate the output voltage, thereby minimising propagation delay in the control circuit. The circuit may include a primary voltage regulator arranged to supply the control circuit at a lower voltage than that of the voltage source.
摘要翻译：调节电源电路包括布置成产生参考电压的电压参考电路和响应于控制信号以从电压源提供负载的输出装置。控制电路被布置为将负载处的输出电压与参考电压进行比较。控制电路包括比较器，该比较器包括具有施加了参考电压的第一输入的长尾晶体管对，施加输出电压的第二输入和连接到输出装置的输入端的输出。控制电路通过单个半导体结对输出装置施加校正信号以调节输出电压，从而最小化控制电路中的传播延迟。该电路可以包括一个初级电压调节器，其被布置为将控制电路提供在比电压源低的电压。

3. 发明申请

WO2010028429A1 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：低失真CASCODE放大器电路
公开(公告)号：WO2010028429A1
公开(公告)日：2010-03-18
申请号：PCT/AU2009/001173
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO (PTY) LTD , SAVAGE, Paul , THOMAS, Clive
发明人： THOMAS, Clive
IPC分类号： H03F1/22 , H03F3/20 , H03F3/26
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03
摘要： An audio amplifier circuit has a first cascode stage configured as a voltage gain stage and having an input for an audio signal, and an output. The circuit has a second cascode stage configured as a unity gain or near unity gain stage and having an input to receive an output from the first cascode stage, and a low impedance output to drive an output stage of an audio power amplifier. The first cascode stage has a first, input transistor having an input biased to a predetermined bias voltage, and a second, output transistor arranged to drive the second cascode stage. The first, input transistor of the first cascode stage may have a common-emitter configuration, and the second, output transistor may have a common-base configuration. The invention extends to an audio amplifier which includes a circuit of the invention.
摘要翻译：音频放大器电路具有被配置为电压增益级并且具有用于音频信号的输入的第一共源共栅级和输出。电路具有被配置为单位增益或接近单位增益级的第二共源共栅级，并且具有用于接收来自第一共源共栅级的输出的输入和用于驱动音频功率放大器的输出级的低阻抗输出。第一共源共栅级具有第一输入晶体管，其具有偏置到预定偏置电压的输入，以及布置成驱动第二共源共栅级的第二输出晶体管。第一共源共栅级的第一输入晶体管可以具有共发射极配置，并且第二输出晶体管可以具有共同基极配置。本发明扩展到包括本发明的电路的音频放大器。

4. 发明公开

EP2329593A4 HIGH VOLTAGE REGULATED POWER SUPPLY 审中-公开
标题翻译：稳压高电压电源供应
公开(公告)号：EP2329593A4
公开(公告)日：2014-02-19
申请号：EP09812523
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO PTY LTD
发明人： THOMAS CLIVE
IPC分类号： H03F1/02 , G05F1/56 , G05F1/66 , H03F3/45
CPC分类号： H03F3/45475 , G05F1/56 , H03F3/45085 , H03F2200/78 , H03F2203/45102 , H03F2203/45116 , H03F2203/45136 , H03F2203/45142 , H03F2203/45158 , H03F2203/45188 , H03F2203/45322 , H03F2203/45512 , H03F2203/45518 , H03F2203/45568 , H03F2203/45646 , H03F2203/45676

5. 发明公开

EP2321979A4 RIBBON LOUDSPEAKER MODULE AND AMPLIFIER THEREFORE 审中-公开
标题翻译： BAND扬声器模块和放大器THEREFOR
公开(公告)号：EP2321979A4
公开(公告)日：2012-10-17
申请号：EP09812524
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO PTY LTD
发明人： THOMAS CLIVE
IPC分类号： H04R9/04 , H04R3/08 , H04R9/06
CPC分类号： H04R3/08 , H04R9/048

6. 发明公开

EP2329594A4 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：具有低失真CASCADE放大电路
公开(公告)号：EP2329594A4
公开(公告)日：2014-02-19
申请号：EP09812522
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO PTY LTD
发明人： THOMAS CLIVE
IPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/20 , H03F3/26 , H03F3/30
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03

7. 发明公开

EP2329594A1 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：具有低失真CASCADE放大电路
公开(公告)号：EP2329594A1
公开(公告)日：2011-06-08
申请号：EP09812522.2
申请日：2009-09-08
申请人： Thomas Rogoff Audio (Pty) Ltd
发明人： THOMAS, Clive
IPC分类号： H03F1/22 , H03F3/20 , H03F3/26
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03
摘要： An audio amplifier circuit has a first cascode stage configured as a voltage gain stage and having an input for an audio signal, and an output. The circuit has a second cascode stage configured as a unity gain or near unity gain stage and having an input to receive an output from the first cascode stage, and a low impedance output to drive an output stage of an audio power amplifier. The first cascode stage has a first, input transistor having an input biased to a predetermined bias voltage, and a second, output transistor arranged to drive the second cascode stage. The first, input transistor of the first cascode stage may have a common-emitter configuration, and the second, output transistor may have a common-base configuration. The invention extends to an audio amplifier which includes a circuit of the invention.

8. 发明公开

EP2329593A1 HIGH VOLTAGE REGULATED POWER SUPPLY 审中-公开
标题翻译：稳压高电压电源供应
公开(公告)号：EP2329593A1
公开(公告)日：2011-06-08
申请号：EP09812523.0
申请日：2009-09-08
申请人： Thomas Rogoff Audio (Pty) Ltd
发明人： THOMAS, Clive
IPC分类号： H03F1/02 , G05F1/66
CPC分类号： H03F3/45475 , G05F1/56 , H03F3/45085 , H03F2200/78 , H03F2203/45102 , H03F2203/45116 , H03F2203/45136 , H03F2203/45142 , H03F2203/45158 , H03F2203/45188 , H03F2203/45322 , H03F2203/45512 , H03F2203/45518 , H03F2203/45568 , H03F2203/45646 , H03F2203/45676
摘要： A regulated power supply circuit includes a voltage reference circuit arranged to generate a reference voltage and an output device responsive to a control signal to supply a load from a voltage source. A control circuit is arranged to compare an output voltage at the load with the reference voltage. The control circuit includes a comparator comprising a long-tailed transistor pair having a first input to which the reference voltage is applied, a second input to which the output voltage is applied, and an output connected to an input terminal of the output device. The control circuit applies a correction signal to the output device via a single semiconductor junction to regulate the output voltage, thereby minimising propagation delay in the control circuit. The circuit may include a primary voltage regulator arranged to supply the control circuit at a lower voltage than that of the voltage source.

9. 发明公开

EP2321979A1 RIBBON LOUDSPEAKER MODULE AND AMPLIFIER THEREFORE 审中-公开
标题翻译： BAND扬声器模块和放大器THEREFOR
公开(公告)号：EP2321979A1
公开(公告)日：2011-05-18
申请号：EP09812524.8
申请日：2009-09-08
申请人： Thomas Rogoff Audio (Pty) Ltd
发明人： THOMAS, Clive
IPC分类号： H04R9/04 , H04R9/06
CPC分类号： H04R3/08 , H04R9/048
摘要： A ribbon loudspeaker module includes a ribbon element of electrically conductive material and having a resistance of less than 1Ω and a magnetic system arranged to create a magnetic field about the ribbon element. A buffer amplifier having an input is arranged to receive a loudspeaker drive signal from an audio power amplifier and an output arranged to drive the ribbon element directly. The ribbon loudspeaker module is preferably a low frequency module, designed to handle audio signals below 5kHz, and preferably in the range 20Hz to 3kHz or a part thereof. The ribbon element may have a resistance of less than 0.5Ω, less than 0.2Ω and even as little as 0.15Ω or less.

10. 发明专利

ZA201102165B RIBBON LOUDSPEAKER MODULE AND AMPLIFIER THEREFORE 未知
公开(公告)号：ZA201102165B
公开(公告)日：2012-06-27
申请号：ZA201102165
申请日：2011-03-23
申请人： THOMAS ROGOFF AUDIO (PTY) LTD
发明人： THOMAS CLIVE
IPC分类号： H04R20060101
摘要： A ribbon loudspeaker module includes a ribbon element of electrically conductive material and having a resistance of less than 1&OHgr; and a magnetic system arranged to create a magnetic field about the ribbon element. A buffer amplifier having an input is arranged to receive a loudspeaker drive signal from an audio power amplifier and an output arranged to drive the ribbon element directly. The ribbon loudspeaker module is preferably a low frequency module, designed to handle audio signals below 5 kHz, and preferably in the range 20 Hz to 3 kHz or a part thereof. The ribbon element may have a resistance of less than 0.5&OHgr;, less than 0.2&OHgr; and even as little as 0.15&OHgr; or less.

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