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1. 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。

2. 发明授权

US5578956A Circuit for limiting the maximum current value supplied to a load by a power MOS at power-up 失效
标题翻译：用于在加电时限制由功率MOS供给负载的最大电流值的电路
公开(公告)号：US5578956A
公开(公告)日：1996-11-26
申请号：US615729
申请日：1996-03-14
申请人： Giorgio Rossi , Fabio Marchioo , Liana Luoni , Franco Cocetta
发明人： Giorgio Rossi , Fabio Marchioo , Liana Luoni , Franco Cocetta
IPC分类号： H03G11/00 , H03F1/52 , H03G11/02 , H03K17/082 , H03K5/08
CPC分类号： H03F1/523 , H03K17/0822
摘要： The invention concerns a circuit for limiting the maximum current to be supplied to a load through a power MOS, being an improvement of the limiting circuitry which uses an equalizing capacitor. The addition of circuitry with a one-way current flow between a terminal of the equalizing capacitor and the gate terminal of the power MOS is effective to lower the voltage across the capacitor and to speed up its charging process, thereby making the current limiting action expected from the circuit a timely one. The circuitry which limits current flow to one direction may include a second MOS of the same type as the power MOS. In this way, any deviations of the power MOS from its designed operation, e.g. due to its manufacturing process variation and thermal drift phenomena, can also be compensated.
摘要翻译：本发明涉及一种用于限制通过功率MOS提供给负载的最大电流的电路，其是使用均衡电容器的限制电路的改进。在均衡电容器的端子和功率MOS的栅极端子之间添加具有单向电流的电路有效地降低电容器两端的电压并加速其充电过程，从而使预期的电流限制动作从电路及时的一个。限制电流流向一个方向的电路可以包括与功率MOS相同类型的第二MOS。以这种方式，功率MOS与其设计的操作的任何偏差，例如由于其制造工艺变化和热漂移现象，也可以补偿。

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

US5576648A Temperature stable circuit for controlled current discharge during the driving of an inductive load 失效
标题翻译：在感性负载驱动期间控制电流放电的温度稳定电路
公开(公告)号：US5576648A
公开(公告)日：1996-11-19
申请号：US202043
申请日：1994-02-23
申请人： Giorgio Rossi , Franco Cocetta , Fabio Marchio
发明人： Giorgio Rossi , Franco Cocetta , Fabio Marchio
IPC分类号： H01L27/04 , H01L21/822 , H01L23/58 , H03K17/082 , H03K17/14 , H03K17/16 , H03K17/687 , H03K3/00 , G05F1/40
CPC分类号： H03K17/168 , H03K17/0822 , H03K17/165
摘要： A circuit for controlled discharge of energy stored in an inductive load, comprising an active semiconductor device (T) connected serially with the inductive load (L) between first and second terminals of a voltage supply source and having a control terminal for connection to a driver circuit (C), and a control circuit (R1, R2, COMP) connected between the inductive load and said control terminal. The control circuit comprises a voltage divider (R1, R2) connected between the inductive load (L) and the first terminal of the voltage supply source, and a comparator (COMP) having first and second input terminals respectively connected to the voltage divider and to a voltage reference and an output terminal which is coupled to the control terminal of the active element (T).
摘要翻译：一种用于受控放电存储在电感负载中的能量的电路，包括与电压源的第一和第二端子之间的感性负载（L）串联连接的有源半导体器件（T），并且具有用于连接到驱动器电路（C）和连接在感性负载和所述控制端子之间的控制电路（R1，R2，COMP）。控制电路包括连接在感性负载（L）和电压源的第一端之间的分压器（R1，R2）和具有分别连接到分压器的第一和第二输入端的比较器（COMP）和电压基准和输出端子，其耦合到有源元件（T）的控制端子。

5. 发明授权

US07109804B2 Precision relaxation oscillator without comparator delay errors 有权
标题翻译：精密放大振荡器，无比较器延时误差
公开(公告)号：US07109804B2
公开(公告)日：2006-09-19
申请号：US10834326
申请日：2004-04-27
申请人： Urs H. Mader , Yvonne Ko , Franco Cocetta , Jeff Kotowski , Xiaoying Yu
发明人： Urs H. Mader , Yvonne Ko , Franco Cocetta , Jeff Kotowski , Xiaoying Yu
IPC分类号： H03L7/00 , H03B5/10
CPC分类号： H03K4/502
摘要： A relaxation oscillator for generating an oscillator output signal having a predetermined frequency. The relaxation oscillator includes an interleaved charge pump for providing a restoring charge to an integrator in response to at least one charge pump control signal. The relaxation oscillator further includes an integrator having an integrator input connected to the current summing node. The integrator is adapted to produce an integrator output signal having the predetermined frequency at an integrator output. A comparator having an input connected to the integrator output is adapted to generate the oscillator output signal having the predetermined frequency in response to the integrator output signal.
摘要翻译：一种放大振荡器，用于产生具有预定频率的振荡器输出信号。弛豫振荡器包括交错电荷泵，用于响应于至少一个电荷泵控制信号向积分器提供恢复电荷。弛豫振荡器还包括具有连接到当前求和节点的积分器输入的积分器。积分器适于在积分器输出处产生具有预定频率的积分器输出信号。具有连接到积分器输出的输入的比较器适于响应于积分器输出信号产生具有预定频率的振荡器输出信号。

6. 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。

7. 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）。

8. 发明申请

US20050237118A1 Precision relaxation oscillator without comparator delay errors 有权
标题翻译：精密放大振荡器，无比较器延时误差
公开(公告)号：US20050237118A1
公开(公告)日：2005-10-27
申请号：US10834326
申请日：2004-04-27
申请人： Urs Mader , Yvonne Ko , Franco Cocetta , Jeff Kotowski , Xiaoying Yu
发明人： Urs Mader , Yvonne Ko , Franco Cocetta , Jeff Kotowski , Xiaoying Yu
IPC分类号： H03K4/502 , H03L7/00
CPC分类号： H03K4/502
摘要： A relaxation oscillator for generating an oscillator output signal having a predetermined frequency. The relaxation oscillator includes an interleaved charge pump for providing a restoring charge to an integrator in response to at least one charge pump control signal. The relaxation oscillator further includes an integrator having an integrator input connected to the current summing node. The integrator is adapted to produce an integrator output signal having the predetermined frequency at an integrator output. A comparator having an input connected to the integrator output is adapted to generate the oscillator output signal having the predetermined frequency in response to the integrator output signal.
摘要翻译：一种用于产生具有预定频率的振荡器输出信号的放大振荡器。弛豫振荡器包括交错电荷泵，用于响应于至少一个电荷泵控制信号向积分器提供恢复电荷。弛豫振荡器还包括具有连接到当前求和节点的积分器输入的积分器。积分器适于在积分器输出处产生具有预定频率的积分器输出信号。具有连接到积分器输出的输入的比较器适于响应于积分器输出信号产生具有预定频率的振荡器输出信号。

9. 发明授权

US06507178B2 Switching type bandgap controller 有权
标题翻译：开关式带隙控制器
公开(公告)号：US06507178B2
公开(公告)日：2003-01-14
申请号：US09944065
申请日：2001-08-30
申请人： Franco Cocetta , Giorgio Rossi
发明人： Franco Cocetta , Giorgio Rossi
IPC分类号： G05F316
CPC分类号： H02J7/245 , G05F3/30 , Y02T10/92
摘要： An integrated self-powered and switching electronic circuit regulates a stable reference voltage and comprises a band-gap voltage generator to produce said stable reference voltage for a system circuit block that is generally supplied by the output of the band-gap generator through a comparator and an error amplifier. A regulating loop is provided between the output of the system block and the input of the voltage generator circuit to supply a voltage signal produced by the output of the system block. Advantageously, the voltage generator circuit incorporates both the comparator and the error amplifier.
摘要翻译：集成的自供电和开关电子电路调节稳定的参考电压并且包括带隙电压发生器以产生用于系统电路块的所述稳定参考电压，该系统电路块通常通过比较器由带隙发生器的输出端提供，误差放大器。在系统块的输出端和电压发生器电路的输入端之间设置调节回路，以提供由系统块的输出产生的电压信号。有利地，电压发生器电路包括比较器和误差放大器。

10. 发明授权

US06414472B1 Electronic switching regulator circuit for producing a reference voltage variable with temperature 有权
标题翻译：用于产生参考电压随温度变化的电子开关调节器电路
公开(公告)号：US06414472B1
公开(公告)日：2002-07-02
申请号：US09943096
申请日：2001-08-30
申请人： Franco Cocetta
发明人： Franco Cocetta
IPC分类号： G05F320
CPC分类号： H02J7/1453
摘要： A switching regulator circuit produces a varying reference voltage with temperature and includes at least one band-gap generator for supplying a power stage through an error amplifier and a comparator. The error amplifier is also supplied a regulated voltage which may be produced by the regulator itself. The at least one band-gap generator includes a plurality of band-gap generators being supplied by the regulated voltage and input a fraction of the regulated voltage through a voltage divider. The respective outputs of the band-gap generators are connected to a logic network which has an output connected to the power stage. The error amplifier and comparator may be included within each respective band-gap generator.
摘要翻译：开关调节器电路产生具有温度的变化的参考电压，并且包括用于通过误差放大器和比较器提供功率级的至少一个带隙发生器。误差放大器还提供可由调节器本身产生的调节电压。所述至少一个带隙发生器包括通过调节电压提供的多个带隙发生器，并通过分压器输入调节电压的一部分。带隙发生器的相应输出端连接到具有连接到功率级的输出的逻辑网络。误差放大器和比较器可以包括在每个相应的带隙发生器内。

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