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1. 发明专利

JP2004245839A Readout for detector 有权
公开(公告)号：JP2004245839A
公开(公告)日：2004-09-02
申请号：JP2004034859
申请日：2004-02-12
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： KNOEDGEN HORST
IPC分类号： G01R27/02 , G01D3/02 , G01D5/165 , G01R17/20 , G01R27/08
CPC分类号： G01D5/165 , G01D3/021 , G01R17/20
摘要： PROBLEM TO BE SOLVED: To realize a circuit and a method for measuring continuously resistances of variable resistors in a detector.
SOLUTION: The present invention realizes the circuit and the method for measuring continuously, for example, the resistances 1, 2 of the serial variable resistors as a potentiometer, in the detector 10 used for a joy stick. Voltages are stabilized in both ends of the detector provided with the optional number of the variable resistors. A constant-current source 22 supplies the minimum current flowing through the detector. A change of a current flowing through the detector generated by changes in the resistances of the detector is smoothed using a variable current source. The variable current is milled to identify total resistance of the detector by measuring voltages in both ends of a shunt resistor. Voltages expressing the respective resistances of the variable resistors are measures according to a known equation of a potential divider, using a port between the respective resistors. The optional number of the variable resistors is used in the circuit.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2004194335A Compensation of center gravity of class-d amplifier 有权
标题翻译：对D类放大器的中心重要性的补偿
公开(公告)号：JP2004194335A
公开(公告)日：2004-07-08
申请号：JP2003413285
申请日：2003-12-11
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： NILSSON JOHAN , LENNARTSSON LARS , KNOEDGEN HORST
IPC分类号： H03K17/687 , H03F1/32 , H03F3/217 , H03K5/05 , H03K7/08
CPC分类号： H03F3/2175 , H03F1/3241 , H03F3/217 , H03F3/2173 , H03F2200/331
摘要： PROBLEM TO BE SOLVED: To provide a class-D amplifier having a PCM (pulse code modulated) input signal which is capable of making a time-voltage-area constant by adjusting an output pulse width, or obtaining a multi-level output system by allowing the output pulse width to have one value from among discrete values. SOLUTION: This method assures whether the center of each output pulse always appears at a position meeting a nominal clock or at a position with a fixed delay relative to the nominal clock. The amplifier is provided with a means 21 for converting an input pulse into an ideal PDM (pulse density modulated) control pulse, a means 23 for calculating the center of each pulse, a means 22 for deciding a delay requested for each power driver control pulse, a means 24 for generating a power driver control pulse which has been corrected, a means 25 for a power driver for driving a voltage for an output load to be controlled by the power driver control pulse, and a means 26 for the output load as a target of an amplifier output. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有PCM（脉冲编码调制）输入信号的D类放大器，其能够通过调整输出脉冲宽度使时间 - 电压 - 面积恒定，或获得多级输出系统允许输出脉冲宽度在离散值之间具有一个值。
解决方案：该方法确保每个输出脉冲的中心是否始终出现在满足标称时钟的位置或相对于标称时钟具有固定延迟的位置。放大器设置有用于将输入脉冲转换为理想PDM（脉冲浓度调制）控制脉冲的装置21，用于计算每个脉冲的中心的装置23，用于确定每个功率驱动器控制脉冲所请求的延迟的装置22 ，用于产生已被校正的功率驱动器控制脉冲的装置24，用于驱动用于由功率驱动器控制脉冲控制的输出负载的电压的功率驱动器的装置25和用于输出负载的装置26 放大器输出的目标。版权所有（C）2004，JPO＆NCIPI

3. 发明专利

JP2003315383A Fuel gage power switch with current sense 审中-公开
标题翻译：燃油电源开关，具有电流检测
公开(公告)号：JP2003315383A
公开(公告)日：2003-11-06
申请号：JP2003098428
申请日：2003-04-01
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： KNOEDGEN HORST
IPC分类号： G01R19/252 , G01R19/00 , H03K3/02
CPC分类号： G01R19/0092 , G01R19/252
摘要： PROBLEM TO BE SOLVED: To provide an effective and very-easily manufacturable current sense circuit for power switch output.
SOLUTION: The circuit is equipped with an output transistor 24, and the drain thereof is connected to a load 32, and the source is connected to a power rail 10, and the gate is connected to a control voltage, and the output transistor passes an output current. The circuit is also equipped with a sense transistor 28, and its source is connected to the power rail 10, and the gate is connected to the control voltage. A sense factor is a quotient determined by dividing the size of the output transistor by the size of the sense transistor. The quotient determined by dividing the output current by the sense factor is a drain current of the sense transistor. The circuit is equipped with a current control oscillator 40 having an input and an output. The input is the drain current of the sense transistor, and the output is a circulating signal having a frequency proportional to the output current.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为功率开关输出提供有效且易于制造的电流检测电路。
解决方案：电路配有输出晶体管24，其漏极连接到负载32，源极连接到电源轨10，栅极连接到控制电压，输出端晶体管通过输出电流。电路还配备有检测晶体管28，其源极连接到电源轨10，并且栅极连接到控制电压。感测因子是通过将输出晶体管的尺寸除以感测晶体管的尺寸确定的商。通过将输出电流除以感测因子确定的商是感测晶体管的漏极电流。该电路配备有具有输入和输出的电流控制振荡器40。输入是感测晶体管的漏极电流，输出是具有与输出电流成比例的频率的循环信号。版权所有（C）2004，JPO

4. 发明专利

JP2004194334A Linearization of pdm class-d amplifier 审中-公开
公开(公告)号：JP2004194334A
公开(公告)日：2004-07-08
申请号：JP2003413262
申请日：2003-12-11
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： NILSSON JOHAN , LENNARTSSON LARS , KNOEDGEN HORST
IPC分类号： H03K3/017 , H03F3/217
CPC分类号： H03F3/2173 , H03F2200/331
摘要： PROBLEM TO BE SOLVED: To provide a method of linearizing characteristics of a class-D power output stage by compensating a pulse area error caused by a non-constant power supply and the inconsistency of a similar circuit. SOLUTION: A class-D amplifier typically converts a PDM (pulse density modulated) input signal using a Sigma Delta modulator 21, and typically uses an H-bridge 24 as the class-D power output stage. A basic idea is to keep the time-voltage area of each pulse constant. To obtain this, a circuit applies integration 22 to the power supply voltage, and the integration is started with the PDM input pulse 23 and is stopped when reaching a defined time voltage reference. To compensate voltage drops of both ends of output devices in addition to power supply variations for example, an input for an integrator is refered to actual voltages of both ends of the output load 25 more directly. COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2003304126A Class d amplifier energy control 审中-公开
标题翻译：级别放大器能量控制
公开(公告)号：JP2003304126A
公开(公告)日：2003-10-24
申请号：JP2003098786
申请日：2003-04-02
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： KNOEDGEN HORST
IPC分类号： H03F1/30 , H03F3/217
CPC分类号： H03F3/217 , H03F1/303 , H03F3/2173
摘要： PROBLEM TO BE SOLVED: To achieve an energy control circuit for a class D amplifier and a class D amplifier circuit having energy control to improve a power source removal rate (PSRR).
SOLUTION: This energy control circuit is provided with a means for generating an energy accumulation signal EAS 98 proportional to an output drive signal 74 of a class D amplifier 50. Also, means 75 and 102 are used to receive the energy accumulation signal, and to interrupt an output drive signal when the energy accumulation signal exceeds the reference level 106. A single-ended amplifier and an H-bridge amplifier are realized. This class D amplifier is provided with an output driver for generating an output drive signal corresponding to an input signal, an integrator 82 for generating the energy accumulation signal of the class D amplifier and a comparator 102 for generating a reset signal to interrupt the output drive signal when the energy accumulation signal exceeds the reference level.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了实现具有能量控制的D类放大器和D类放大器电路的能量控制电路，以提高电源去除率（PSRR）。解决方案：该能量控制电路设置有用于产生与D类放大器50的输出驱动信号74成比例的能量积累信号EAS 98的装置。而且，装置75和102用于接收能量积累信号并且当能量积累信号超过参考电平106时中断输出驱动信号。实现单端放大器和H桥放大器。该D类放大器设置有用于产生对应于输入信号的输出驱动信号的输出驱动器，用于产生D类放大器的能量积累信号的积分器82和用于产生复位信号以中断输出驱动的比较器102 当能量积累信号超过参考电平时发出信号。版权所有（C）2004，JPO

6. 发明专利

JP2010025946A Fuel gauge power switch with current sensing 有权
标题翻译：带电流传感器的燃油功率开关
公开(公告)号：JP2010025946A
公开(公告)日：2010-02-04
申请号：JP2009240590
申请日：2009-10-19
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： KNOEDGEN HORST
IPC分类号： G01R19/00 , G01R19/252 , H03K3/02 , H03K4/06 , H03K7/08
CPC分类号： G01R19/0092 , G01R19/252
摘要： PROBLEM TO BE SOLVED: To provide an effective and highly manufacturable current sense circuit for a power switch output.
SOLUTION: The circuit includes an output transistor 24. The drain is coupled to a load 32, the source is coupled to a power rail 10, and the gate is coupled to a control voltage such that the output transistor conducts an output current. A sense transistor 28 is included. The source is coupled to the power rail 10, and the gate is coupled to the control voltage. A sensing factor is the quotient of the size of the output transistor divided by the size of the sense transistor. The quotient of the output current divided by the sensing factor becomes the drain current of the sense transistor. The circuit includes a current controlled oscillator 40 having an input and output. The input is the drain current of the sense transistor. The output is a cyclical signal having a frequency proportional to the output current.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为电源开关输出提供有效且高度可制造的电流检测电路。解决方案：电路包括输出晶体管24.漏极耦合到负载32，源极耦合到电力轨10，并且栅极耦合到控制电压，使得输出晶体管导通输出电流。包括检测晶体管28。源极耦合到电源轨10，并且栅极耦合到控制电压。感测因子是输出晶体管的尺寸除以感测晶体管的尺寸的商。输出电流除以感测因数的商变成感测晶体管的漏极电流。电路包括具有输入和输出的电流控制振荡器40。输入是感测晶体管的漏极电流。输出是具有与输出电流成正比的频率的周期信号。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2004274712A Class-d amplifier with digital feedback 审中-公开
公开(公告)号：JP2004274712A
公开(公告)日：2004-09-30
申请号：JP2003344189
申请日：2003-10-02
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： LENNARTSON LARS , NILSSON JOHAN , KNOEDGEN HORST
IPC分类号： H04L1/00 , H03F3/217 , H03M3/00 , H03M3/02
CPC分类号： H03F3/2175 , H03F2200/331 , H03M3/322 , H03M3/458
摘要： PROBLEM TO BE SOLVED: To provide a class-D amplifier with digital feedback for compensating for the pulse errors in a Class-D power amplifier stage so as to compensate for the variations in the supply voltage and similar dependencies.
SOLUTION: A Class-D amplifier typically receives a pulse coded digital input (PCM) and may comprise a Sigma Delta Modulator 22 to generate the signals driving the power output stage, typically an H-Bridge 23. The Class-D amplifier is characterized in to measure the real area of the output pulses, where the area is defined as the pulse duration multiplied by the pulse voltage amplitude, and to compare it with the ideal nominal pulse area. The pulse area error is calculated (26) and then subtracted from the amplifier's input data. The 'Pulse Area Compensation Function' calculates (25) the real pulse area (voltage amplitude multiplied by time), compares the real pulse area with the ideal pulse area and feeds the difference into the input of the Sigma Delta Modulator.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2004242331A Monolithic optical reading circuit 审中-公开
公开(公告)号：JP2004242331A
公开(公告)日：2004-08-26
申请号：JP2004030135
申请日：2004-02-06
申请人： Dialog Semiconductor Gmbh , ディアローク・セミコンダクター・ゲーエムベーハー
发明人： KNOEDGEN HORST
IPC分类号： H01L31/12 , G01J1/44 , H03F3/08 , H04M1/60 , H04M1/725
CPC分类号： H04M1/605 , G01J1/44 , H04M2250/12 , Y02D70/00 , Y02D70/12 , Y02D70/122
摘要： PROBLEM TO BE SOLVED: To provide a method and a circuit which is effective and can be manufactured in order to control the loudness of an ear piece of a mobile telephone for avoiding a loudness level that is unpleasant and harmful to a user. SOLUTION: A method and a circuit are provided for conducting the loudness control of the ear piece of the mobile telephone and a speaker by a help of a proximity sensor. The proximity sensor is obtained as a infrared ray photoelectric protection circuit, and requires only extremely limited external components. As a new component, a required photodetector is incorporated in a single chip. If the photodetector composes a single IC together with other circuit components, a cost decreases remarkably. If such an advantage of the solution is used, the circuit is manufactured by a standard CMOS technology, and only using extremely limited external discrete component elements. Power consumption and a manufacturing cost are also reduced by such a solution. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

DE60335180D1 Hochspannungschnittstelle und Steuerschaltung dafür 未知
公开(公告)号：DE60335180D1
公开(公告)日：2011-01-13
申请号：DE60335180
申请日：2003-07-04
申请人： DIALOG SEMICONDUCTOR GMBH
发明人： KNOEDGEN HORST
IPC分类号： H03K17/081 , H02M3/158 , H03K17/06 , H03K17/687

10. 发明专利

DE60228962D1 未知
公开(公告)号：DE60228962D1
公开(公告)日：2008-10-30
申请号：DE60228962
申请日：2002-10-02
申请人： DIALOG SEMICONDUCTOR GMBH
发明人： LENNARTSON LARS , NILSON JOHAN , KNOEDGEN HORST
IPC分类号： H03F3/217 , H04L1/00 , H03M3/00 , H03M3/02
摘要： The circuit has a sigma delta modulator (22) to convert pulse code modulated (PCM) into power control pulses. An H-Bridge (23) drive voltage into an output load e.g. loud-speaker (24). An algorithm in digital signal processor calculates pulse area error, which is the difference between real and ideal pulse area. An independent claim is also included for a method for compensating the pulse area error in a class-D power amplifier.

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