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1. 发明授权

US06215338B1 Monitoring of low currents through a low-side driver DMOS by modulating its internal resistance 有权
标题翻译：通过调制其内阻来监控低端驱动器DMOS的低电流
公开(公告)号：US06215338B1
公开(公告)日：2001-04-10
申请号：US09321141
申请日：1999-05-27
申请人： Luigi Gervasi , Sergio Lecce , Franco Cocetta , Mauro Merlo
发明人： Luigi Gervasi , Sergio Lecce , Franco Cocetta , Mauro Merlo
IPC分类号： H03B100
CPC分类号： G01R31/026 , G01R19/0092
摘要： Relatively low currents are monitored through an integrated DMOS power transistor in a low-side driver configuration. A feedback circuit is responsive to the voltage applied to a gate of the DMOS power transistor to limit the minimum value to which the drain-source voltage may drop to keep it sufficiently high, and to allow a reliable monitoring of the current through the power transistor, even at relatively low levels. This is performed by increasing the conduction resistance of the power transistor at low current levels.
摘要翻译：通过低侧驱动器配置的集成DMOS功率晶体管监测相对较低的电流。反馈电路响应于施加到DMOS功率晶体管的栅极的电压以限制漏极 - 源极电压可能下降的最小值，以使其足够高，并且允许对通过功率晶体管的电流的可靠监测，即使在相对较低的水平。这是通过在低电流水平下增加功率晶体管的导通电阻来实现的。

2. 发明授权

US06078203A Non-linear voltage regulator, particularly for an automotive alternator 失效
标题翻译：非线性稳压器，特别适用于汽车交流发电机
公开(公告)号：US06078203A
公开(公告)日：2000-06-20
申请号：US19893
申请日：1998-02-06
申请人： Alessandro Zafarana , Franco Cocetta , Mauro Merlo
发明人： Alessandro Zafarana , Franco Cocetta , Mauro Merlo
IPC分类号： H02M3/156 , H02P9/30 , H03K5/04
CPC分类号： H02P9/305 , H02M3/156
摘要： A voltage regulator of the type comprising a linear filter, a comparator, and a stretcher filter which are connected in cascade with one another between an input terminal and an output terminal of the regulator. The input terminal receives an error signal as converted by the comparator into a square-wave error signal, and the output terminal deliveres a square-wave output control signal which has a stretched duty cycle over the square-wave error signal by a time delay introduced from the stretcher filter. The regulator further comprises a non-linear filtering section for the error signal which is connected between the input terminal of the regulator and the linear filter and has linear gain with the error signal below a first value, gain approximately of unity with the error signal between the first value and a second value, and zero gain with the error signal above the second value.
摘要翻译：一种类型的电压调节器，包括在调节器的输入端子和输出端子之间彼此级联连接的线性滤波器，比较器和担架滤波器。输入端子将由比较器转换的误差信号接收为方波误差信号，输出端子通过时间延迟引出方波输出控制信号，该方波输出控制信号在方波误差信号上具有拉伸占空比从担架过滤器。调节器还包括用于误差信号的非线性滤波部分，其连接在调节器的输入端和线性滤波器之间并具有线性增益，误差信号低于第一值，增益大约为1，第一个值和第二个值，零增益，误差信号高于第二个值。

3. 发明授权

US06392577B1 System and method for regulating an alternator 有权
标题翻译：用于调节交流发电机的系统和方法
公开(公告)号：US06392577B1
公开(公告)日：2002-05-21
申请号：US09412534
申请日：1999-10-05
申请人： David F. Swanson , Mauro Merlo , Franco Cocetta
发明人： David F. Swanson , Mauro Merlo , Franco Cocetta
IPC分类号： H03M166
CPC分类号： H02P9/30 , H02J7/245 , Y02T10/92
摘要： A system and method regulates an alternator and includes a circuit for digitally generating a sawtooth waveform. An error amplifier circuit generates a divided down and error amplified alternator system voltage. A comparator circuit receives and compares to each other the digitally generated sawtooth waveform and the error amplified alternator system voltage and has an output to produce an alternator field input signal used for driving the field of an alternator.
摘要翻译：系统和方法调节交流发电机并且包括用于数字产生锯齿波形的电路。误差放大器电路产生分压和误差放大的交流发电机系统电压。比较器电路接收并比较数字产生的锯齿波形和误差放大的交流发电机系统电压，并具有产生用于驱动交流发电机的场的交流发电机场输入信号的输出。

4. 发明授权

US5703476A Reference voltage generator, having a double slope temperature characteristic, for a voltage regulator of an automotive alternator 失效
标题翻译：具有双斜率温度特性的参考电压发生器，用于汽车交流发电机的电压调节器
公开(公告)号：US5703476A
公开(公告)日：1997-12-30
申请号：US674321
申请日：1996-07-01
申请人： Mauro Merlo , Franco Cocetta , Fabio Marchio , Massimo Grasso , Bruno Murari
发明人： Mauro Merlo , Franco Cocetta , Fabio Marchio , Massimo Grasso , Bruno Murari
IPC分类号： G05F1/46 , G05F3/22 , H02J7/14 , G05F3/16
CPC分类号： G05F1/463 , G05F3/225 , H02J7/1453 , Y10S323/907
摘要： A reference voltage generator having a dual slope temperature characteristic, for use in an automotive alternator voltage regulator, comprises a bandgap circuit (R1,R2,R3,R4) which generates a voltage (A) having a thermal drift coefficient of zero and a voltage (B) having a non-zero thermal drift coefficient. These voltages are applied to a voltage divider (R5,R6) and a voltage-follower type of circuit (OPA1). A unidirectional conduction amplifier circuit (OPA2) has an input terminal connected to an intermediate point (C) on the voltage divider. A second voltage divider (R7,R8) is connected between the output terminals of the voltage-follower circuit (D) and the amplifier circuit (E) . An intermediate node (F) of the second voltage divider is coupled to an output terminal (VREF) of the generator.
摘要翻译：具有用于汽车交流发电机电压调节器的双斜率温度特性的参考电压发生器包括产生具有热漂移系数为零的电压（A）的带隙电路（R1，R2，R3，R4）和电压（B）具有非零热漂移系数。这些电压被施加到分压器（R5，R6）和电压跟随器类型的电路（OPA1）。单向导通放大器电路（OPA2）具有连接到分压器上的中间点（C）的输入端子。第二分压器（R7，R8）连接在电压跟随器电路（D）的输出端子和放大器电路（E）之间。第二分压器的中间节点（F）耦合到发生器的输出端子（VREF）。

5. 发明授权

US4843304A High capacity current mirror circuit 失效
标题翻译：大容量电流镜电路
公开(公告)号：US4843304A
公开(公告)日：1989-06-27
申请号：US52606
申请日：1987-05-19
申请人： Mauro Merlo
发明人： Mauro Merlo
IPC分类号： G05F3/26 , H03F3/347
CPC分类号： G05F3/265 , H03F3/347
摘要： A high capacity current mirror circuit comprises an operational amplifier electrically connected with its input, on the one side, to both a reference current source and a power supply pole through a first resistor, and on the other side, to said power supply pole through a second, feedback resistor, said amplifier being connected with its output to the base of a transistor, thereby supplying a current which is a mirror image of the reference current. According to the invention, that transistor is of the npn type, and in one embodiment, the transistor is connected in a Darlington configuration at the output of the operational amplifier which is of the transconductance type.
摘要翻译：大容量电流镜电路包括运算放大器，其运算放大器的一端与第一电阻器的参考电流源和电源极电连接，另一侧通过一个电源极与所述电源极电连接第二，反馈电阻器，所述放大器与其输出端连接到晶体管的基极，从而提供作为参考电流的镜像的电流。根据本发明，该晶体管是npn型，并且在一个实施例中，晶体管以具有跨导类型的运算放大器的输出端以达林顿配置连接。

6. 发明授权

US4801816A Generator of periodial signals, in particular for switch-mode power supplies 失效
标题翻译：发电机的周期信号，特别是开关电源
公开(公告)号：US4801816A
公开(公告)日：1989-01-31
申请号：US158811
申请日：1988-02-22
申请人： Mauro Merlo , Silvano Coccetti
发明人： Mauro Merlo , Silvano Coccetti
IPC分类号： H03K4/501 , H03K4/00 , H03K4/62 , H03K4/48
CPC分类号： H03K4/625 , H03K4/00
摘要： This generator of periodic signals with exponential edges, which may be integrated at low cost, comprises a current source circuit connected to a capacitor and to a resistive element to supply them with currents having mutually correlated amplitudes, an amplifier interposed between the capacitor and the resistive element and adapted to maintain the voltage drop on the resistive element proportional to the voltage drop on the capacitor, and a switch device, connected in parallel to the capacitor and periodically switched off to allow the discharge of the capacitor.

7. 发明授权

US06426607B1 Programmable system and method for regulating an alternator 有权
标题翻译：用于调节交流发电机的可编程系统和方法
公开(公告)号：US06426607B1
公开(公告)日：2002-07-30
申请号：US09434051
申请日：1999-11-04
申请人： Mauro Merlo , David F. Swanson
发明人： Mauro Merlo , David F. Swanson
IPC分类号： H02J704
CPC分类号： H02J7/1453
摘要： A system and method regulates an alternator charging system and includes a memory for storing and regulating voltages used at specific temperatures for the specific alternator charging system requirements of an alternator. A circuit generates a digital signal indicative of both temperature of a battery supplied by the alternator charging system and the charging system voltage. A digital comparator receives the digital signal and compares the digital signal with the regulating voltage stored within the memory for the specific temperature that is indicative of the temperature of the battery supplied by the alternator charging system to generate a regulator control signal.
摘要翻译：系统和方法调节交流发电机充电系统，并且包括用于存储和调节在特定温度下用于交流发电机的特定交流发电机充电系统要求的电压的存储器。电路产生指示由交流发电机充电系统提供的电池的温度和充电系统电压的数字信号。数字比较器接收数字信号，并将数字信号与存储在存储器内的调节电压比较，该特定温度指示由交流发电机充电系统提供的电池的温度以产生调节器控制信号。

8. 发明授权

US4752722A Control circuit with compensation of the anode voltage variation for televisor vertical deflection stage 失效
标题翻译：控制电路补偿电视机垂直偏转阶段的阳极电压变化
公开(公告)号：US4752722A
公开(公告)日：1988-06-21
申请号：US836116
申请日：1986-03-04
申请人： Pietro Erratico , Mauro Merlo , Silvano Coccetti
发明人： Pietro Erratico , Mauro Merlo , Silvano Coccetti
IPC分类号： H04N3/16 , H01J29/70 , H01J29/76
CPC分类号： H04N3/16
摘要： An amplifier stage with variable gain dependent on the anode voltage is interposed between a ramp generator having constant amplitude ramp output voltage and the vertical deflection stage in such a manner as to vary the input voltage of said vertical deflection stage in accordance with anode voltage variations. In such a manner the vertical deflection current varies correspondingly.
摘要翻译：具有取决于阳极电压的可变增益的放大器级介于具有恒定幅度斜坡输出电压的斜坡发生器和垂直偏转级之间，以便根据阳极电压变化改变所述垂直偏转级的输入电压。以这种方式，垂直偏转电流相应地变化。

9. 发明授权

US5416389A Horizontal deflection stage linearity control device 失效
标题翻译：水平偏转台线性度控制装置
公开(公告)号：US5416389A
公开(公告)日：1995-05-16
申请号：US916386
申请日：1992-07-20
申请人： Mauro Merlo , Silvano Gornati
发明人： Mauro Merlo , Silvano Gornati
IPC分类号： H04N3/16 , H04N3/23 , H04N3/233 , G09G1/04 , H01J29/70
CPC分类号： H04N3/233
摘要： A device for controlling the linearity of a horizontal deflection stage comprising a deflection yoke supplied with a yoke current controlled by a switch and series-connected to a capacitor for varying the yoke voltage according to the phase of the yoke current; the device comprising a circuit for detecting and generating a real signal proportional to the yoke current, a ramp generator for generating an ideal ramp signal having rising portions defining a given S-shaped wave:form, and an error amplifier for receiving the real and ideal ramp signals and generating an error signal for driving a power transistor having its emitter and collector terminals connected parallel to the capacitor for modifying the voltage in the capacitor so that the yoke current assumes the required waveform.
摘要翻译：一种用于控制水平偏转级的线性的装置，包括偏转线圈，该偏转线圈由提供由开关控制的轭电流并串联连接到电容器，用于根据轭电流的相位改变轭电压; 该装置包括用于检测和产生与轭电流成比例的实际信号的电路;斜坡发生器，用于产生具有限定给定S形波形的上升部分的理想斜坡信号;以及误差放大器，用于接收实际和理想的产生用于驱动其发射极和集电极端子并联连接到电容器的功率晶体管的误差信号，用于修改电容器中的电压，使得磁轭电流呈现所需的波形。

10. 再颁专利

USRE35588E Broad operational range, automatic device for the change of frequency in the horizontal deflection of multi-synchronization monitors 失效
标题翻译：广泛的操作范围，自动装置可以在多同步监视器的水平偏转中改变频率
公开(公告)号：USRE35588E
公开(公告)日：1997-08-19
申请号：US296205
申请日：1994-08-25
申请人： Silvano Gornati , Mauro Merlo , Maurizio Zuffada , Loic Lietar
发明人： Silvano Gornati , Mauro Merlo , Maurizio Zuffada , Loic Lietar
IPC分类号： G09G1/04 , G09G1/12 , G09G1/16 , H04N3/27 , H04N5/46 , H01J29/70 , H01J29/72
CPC分类号： G09G1/167 , G09G1/04 , G09G1/16
摘要： A broad operational range, automatic device for the change of frequency in the horizontal deflection of multi-synchronization monitors comprises an integrated circuit incorporating,a frequency meter being input and analog synchronization signal.a phase comparator having two inputs and in turn receiving said synchronization signal on one input,a voltage-controlled oscillator adapted to output a signal whose frequency is depending on said voltage and operatively linked to an output of said phase comparator, anda counter connected with its input, on the one side, to the oscillator output, and on the other side, to the meter output, said counter having an output connected to the other input of the phase comparator also forming the integrated circuit output.
摘要翻译：用于在多同步监视器的水平偏转中改变频率的广泛的操作范围包括集成了输入的频率计和模拟同步信号的集成电路。相位比较器，具有两个输入端，并在一个输入端接收所述同步信号;压控振荡器，其适于输出其频率取决于所述电压并可操作地连接到所述相位比较器的输出端的信号，以及与其一端的输入到振荡器输出，另一方面输入到仪表输出，所述计数器具有连接到相位比较器的另一输入端的输出端，也形成集成电路输出。

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