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

US5589761A Dual polarity voltage regulator circuits and methods for providing voltage regulation 失效
标题翻译：双极性稳压电路和电压调节方法
公开(公告)号：US5589761A
公开(公告)日：1996-12-31
申请号：US472538
申请日：1995-06-07
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , G05F1/575
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： A dual polarity voltage regulator circuit that is capable of regulating either positive or negative voltages is disclosed. The regulator circuitry of the present invention provides dual polarity regulation while requiring only one additional pin over a single polarity regulator. The present invention utilizes a single error amplifier, a negative feedback network, and an overshoot recovery circuit in providing dual polarity regulation. One advantage of the negative feedback network of the present invention is that the regulator circuit uses the same error amplifier (i.e., only one error amplifier) to regulate both positive and negative input voltages. The negative feedback network actively affects signals input into the error amplifier during negative regulation, but is essentially disabled during positive regulation. Thus, positive and negative voltage regulation are provided using a single error amplifier that retains its multiple functions (for example, oscillator frequency shifting, overshoot improvement and loop frequency compensation).
摘要翻译：公开了能够调节正或负电压的双极性调压电路。本发明的调节器电路提供双极性调节，同时在单个极性调节器上仅需要一个附加引脚。本发明利用单误差放大器，负反馈网络和过冲恢复电路来提供双极性调节。本发明的负反馈网络的一个优点是调节器电路使用相同的误差放大器（即，仅一个误差放大器）来调节正输入电压和负输入电压。负反馈网络在负调节期间主动影响输入到误差放大器的信号，但在正调节期间基本上禁用。因此，使用保持其多个功能的单个误差放大器（例如，振荡器频率偏移，过冲改善和环路频率补偿）来提供正和负电压调节。

2. 发明授权

US5668493A Circuits and methods for increasing switch turn-off speed in high-speed switching regulator drive circuits 失效
标题翻译：在高速开关稳压器驱动电路中增加开关截止速度的电路和方法
公开(公告)号：US5668493A
公开(公告)日：1997-09-16
申请号：US488071
申请日：1995-06-07
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , H03K5/08
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： Circuits and methods are provided for increasing the turn-off switching speed of a high-speed integrated circuit, bipolar switching regulator. The regulator The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The increased speed switch turn-off circuitry prevents the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs. In a preferred embodiment, the circuitry includes a PNP transistor and a diode-connected transistor with their base-emitter circuits coupled to form a loop with the base-emitter circuit of a NPN transistor and the base-collector circuit of the switch to limit the on state voltage of the switch and control its depth of saturation. A capacitor is connected across the diode-connected transistor to reduce instabilities due to ringing caused by delays in the feedback loop.
摘要翻译：提供电路和方法来提高高速集成电路，双极开关调节器的关断开关速度。调节器电路以兆赫兹频率运行，但效率如以前提供的双极型集成电路开关稳压器的工作频率低得多。增加的速度开关关断电路防止开关在高功率状态下花费太多时间（这将减慢开关减小），与先前已知的设计相比，增加了开关的稳定性。在优选实施例中，电路包括PNP晶体管和二极管连接的晶体管，其基极 - 发射极电路被耦合以与NPN晶体管的基极 - 发射极电路和开关的基极 - 集电极电路形成环路，以限制开关的状态电压并控制其饱和度。电容器连接在二极管连接的晶体管上，以减少由于反馈回路中的延迟引起的振铃引起的不稳定性。

3. 发明授权

US5656965A Turn-off circuitry for a high-speed switching regulator drive circuit 失效
标题翻译：用于高速开关稳压器驱动电路的关断电路
公开(公告)号：US5656965A
公开(公告)日：1997-08-12
申请号：US488042
申请日：1995-06-07
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： Circuits and methods are provide for improving the turn-off switching speed of a high-speed integrated circuit, bipolar switching regulator. The regulator runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The turn-off circuitry increases the speed at which the switch turns off by momentarily providing additional current to boost the base discharge current during the on-to-off transition period of the switch. In a preferred embodiment, the circuitry includes a capacitor for storing a charge, a resistor for limiting the amount of additional current provided, and a diode for delivering the additional current to the base of an NPN transistor, the collector of which is coupled to the switch's base, for boosting that transistors collector current and the switch's base discharge current. The diode then blocks current during the off-to-on transition period of the switch. Thus, the turn-off circuitry operates on an AC basis and only when the switch is turning off.
摘要翻译：电路和方法用于提高高速集成电路，双极开关稳压器的关断开关速度。稳压器以兆赫兹频率运行，但效率远远高于之前提供的低得多的双极型集成电路开关稳压器。关断电路通过在开关的接通到断开过渡期间暂时提供额外的电流来升高基极放电电流来增加开关截止的速度。在优选实施例中，电路包括用于存储电荷的电容器，用于限制所提供的附加电流量的电阻器和用于将附加电流传送到NPN晶体管的基极的二极管，其集电极耦合到开关的基极，用于提高晶体管集电极电流和开关的基极放电电流。然后，二极管在开关的断开到过渡期间阻断电流。因此，关断电路在AC基础上并且仅当开关断开时才起作用。

4. 发明授权

US6130575A High-speed switching regulator drive circuit 有权
标题翻译：高速开关稳压驱动电路
公开(公告)号：US6130575A
公开(公告)日：2000-10-10
申请号：US153108
申请日：1998-09-15
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , G05F3/02
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： A drive circuit for a high-speed integrated circuit, bipolar switching regulator is disclosed. The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The circuitry provides three switch drive currents: a first (nominal) current that is provided while the switch is off in order to conserve power; a second (boosted) current, provided while the switch is transitioning from off to on in order to increase the speed at which the switching element switches on; and a third (drive) current, provided after the switch has turned on for maintaining the switch at a desired point in saturation. The drive current, additionally, varies as a function of the load on the switch in order, again, to conserve power. Additional circuitry increases the speed at which the switch turns off, by momentarily boosting base discharge current during the on-to-off transition period of the switch. The circuitry also increases speed by enabling the drive current prior to switch turn on. The circuitry can regulate both positive and negative outputs using a common error amplifier, as well as providing a multifunction node for shutdown and synchronization. Additionally, the circuitry provides improved recovery from output overshoot conditions. An improved clamp, to prevent the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs.
摘要翻译：公开了一种用于高速集成电路，双极开关调节器的驱动电路。该电路以兆赫兹频率运行，但是如先前所提供的双极型集成电路开关稳压器的操作频率低得多。电路提供三个开关驱动电流：在开关断开时提供的第一（标称）电流，以节省功率; 提供了当开关从断开转换到接通时提供的第二（升压）电流，以便提高开关元件接通的速度; 和第三（驱动）电流，在开关导通之后提供，以将开关保持在期望的饱和点。此外，驱动电流根据开关上的负载而变化，以再次节省功率。额外的电路通过在开关的接通到断开过渡期间瞬间升高基极放电电流来增加开关关断的速度。电路还可以通过在开关导通之前启用驱动电流来提高速度。电路可以使用公共误差放大器调节正输出和负输出，以及提供关闭和同步的多功能节点。此外，电路提供从输出过冲条件改进的恢复。改进的夹具，以防止开关花费太多的时间在高功率状态（这将减慢开关降低），与先前已知的设计相比，提高了开关的稳定性。

5. 发明授权

US5815015A Synchronization and shutdown circuits and methods in high-speed switching regulator drive circuits 失效
标题翻译：高速开关稳压器驱动电路中的同步和关断电路和方法
公开(公告)号：US5815015A
公开(公告)日：1998-09-29
申请号：US939310
申请日：1997-09-29
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , H03L7/00
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： A drive circuit for a high-speed integrated circuit, bipolar switching regulator is disclosed. The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The circuitry provides three switch drive currents: a first (nominal) current that is provided while the switch is off in order to conserve power; a second (boosted) current, provided while the switch is transitioning from off to on in order to increase the speed at which the switching element switches on; and a third (drive) current, provided after the switch has turned on for maintaining the switch at a desired point in saturation. The drive current, additionally, varies as a function of the load on the switch in order, again, to conserve power. Additional circuitry increases the speed at which the switch turns off, by momentarily boosting base discharge current during the on-to-off transition period of the switch. The circuitry also increases speed by enabling the drive current prior to switch turn on. The circuitry can regulate both positive and negative outputs using a common error amplifier, as well as providing a multifunction node for shutdown and synchronization. Additionally, the circuitry provides improved recovery from output overshoot conditions. An improved clamp, to prevent the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs.
摘要翻译：公开了一种用于高速集成电路，双极开关调节器的驱动电路。该电路以兆赫兹频率运行，但是如先前所提供的双极型集成电路开关稳压器的操作频率低得多。电路提供三个开关驱动电流：在开关断开时提供的第一（标称）电流，以节省功率; 提供了当开关从断开转换到接通时提供的第二（升压）电流，以便提高开关元件接通的速度; 和第三（驱动）电流，在开关导通之后提供，以将开关保持在期望的饱和点。此外，驱动电流根据开关上的负载而变化，以再次节省功率。额外的电路通过在开关的接通到断开过渡期间瞬间升高基极放电电流来增加开关关断的速度。电路还可以通过在开关导通之前启用驱动电流来提高速度。电路可以使用公共误差放大器调节正输出和负输出，以及提供关闭和同步的多功能节点。此外，电路提供从输出过冲条件改进的恢复。改进的夹具，以防止开关花费太多的时间在高功率状态（这将减慢开关降低），与先前已知的设计相比，提高了开关的稳定性。

6. 发明授权

US6111439A High-speed switching regulator drive circuit 有权
公开(公告)号：US6111439A
公开(公告)日：2000-08-29
申请号：US153111
申请日：1998-09-15
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , H01J19/82
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： A drive circuit for a high-speed integrated circuit, bipolar switching regulator is disclosed. The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The circuitry provides three switch drive currents: a first (nominal) current that is provided while the switch is off in order to conserve power; a second (boosted) current, provided while the switch is transitioning from off to on in order to increase the speed at which the switching element switches on; and a third (drive) current, provided after the switch has turned on for maintaining the switch at a desired point in saturation. The drive current, additionally, varies as a function of the load on the switch in order, again, to conserve power. Additional circuitry increases the speed at which the switch turns off, by momentarily boosting base discharge current during the on-to-off transition period of the switch. The circuitry also increases speed by enabling the drive current prior to switch turn on. The circuitry can regulate both positive and negative outputs using a common error amplifier, as well as providing a multifunction node for shutdown and synchronization. Additionally, the circuitry provides improved recovery from output overshoot conditions. An improved clamp, to prevent the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs.

7. 发明授权

US5672988A High-speed switching regulator drive circuit 失效
标题翻译：高速开关稳压驱动电路
公开(公告)号：US5672988A
公开(公告)日：1997-09-30
申请号：US228478
申请日：1994-04-15
申请人： Carl T. Nelson , Robert Essaff
发明人： Carl T. Nelson , Robert Essaff
IPC分类号： H01L27/04 , H01L21/822 , H02J1/10 , H02M1/00 , H02M1/36 , H02M3/155 , H02M3/335 , H03K17/00 , H03K17/04 , H03K17/042 , H03K17/0422 , H03K17/16 , H03K19/013 , H03B1/00
CPC分类号： H02M1/36 , H02M3/155 , H02M3/33507 , H03K17/04213 , H03K17/0422 , H02J2001/104 , H02M1/32 , H02M2001/009 , H03K2217/0036
摘要： A drive circuit for a high-speed integrated circuit, bipolar switching regulator is disclosed. The circuit runs at megahertz frequencies, yet is efficient as previously available bipolar integrated circuit switching regulators operating at much lower frequencies. The circuitry provides three switch drive currents: a first (nominal) current that is provided while the switch is off in order to conserve power; a second (boosted) current, provided while the switch is transitioning from off to on in order to increase the speed at which the switching element switches on; and a third (drive) current, provided after the switch has turned on for maintaining the switch at a desired point in saturation. The drive current, additionally, varies as a function of the load on the switch in order, again, to conserve power. Additional circuitry increases the speed at which the switch turns off, by momentarily boosting base discharge current during the on-to-off transition period of the switch. The circuitry also increases speed by enabling the drive current prior to switch turn on. The circuitry can regulate both positive and negative outputs using a common error amplifier, as well as providing a multifunction node for shutdown and synchronization. Additionally, the circuitry provides improved recovery from output overshoot conditions. An improved clamp, to prevent the switch from spending too much time in a high power state (which would slow the switch down), increases the stability of the switch as compared with previously known designs.
摘要翻译：公开了一种用于高速集成电路，双极开关调节器的驱动电路。该电路以兆赫兹频率运行，但是如先前所提供的双极型集成电路开关稳压器的操作频率低得多。电路提供三个开关驱动电流：在开关断开时提供的第一（标称）电流，以节省功率; 提供了当开关从断开转换到接通时提供的第二（升压）电流，以便提高开关元件接通的速度; 和第三（驱动）电流，在开关导通之后提供，以将开关保持在期望的饱和点。此外，驱动电流根据开关上的负载而变化，以再次节省功率。额外的电路通过在开关的接通到断开过渡期间瞬间升高基极放电电流来增加开关关断的速度。电路还可以通过在开关导通之前启用驱动电流来提高速度。电路可以使用公共误差放大器调节正输出和负输出，以及提供关闭和同步的多功能节点。此外，电路提供从输出过冲条件改进的恢复。改进的夹具，以防止开关花费太多的时间在高功率状态（这将减慢开关降低），与先前已知的设计相比，提高了开关的稳定性。

8. 发明授权

US5485109A Error signal generation circuit for low dropout regulators 失效
标题翻译：用于低压差稳压器的误差信号发生电路
公开(公告)号：US5485109A
公开(公告)日：1996-01-16
申请号：US241505
申请日：1994-05-12
申请人： Robert C. Dobkin , Carl T. Nelson , Dennis P. O'Neill
发明人： Robert C. Dobkin , Carl T. Nelson , Dennis P. O'Neill
IPC分类号： G05F1/56 , G05F1/573 , H03K5/153
CPC分类号： G05F1/573 , G05F1/56
摘要： A three terminal control circuit for a low dropout voltage regulator having a PNP pass transistor is provided. The control circuit is capable of pulling the base-drive point down to a voltage of 3.0 volts or less to permit a current limiting resistor to be inserted between the base drive point and the base of the PNP pass transistor. The control circuit includes a pair of small-valued capacitors for providing stable operation with different output capacitors. The control circuit can also be used with p-channel FET pass transistors.
摘要翻译：提供一种具有PNP传输晶体管的低压差稳压器的三端控制电路。控制电路能够将基极驱动点拉低至3.0伏或更小的电压，以允许限流电阻器插入在PNP传输晶体管的基极驱动点和基极之间。该控制电路包括一对小值电容器，用于提供与不同输出电容器的稳定操作。控制电路也可以与p沟道FET传输晶体管一起使用。

9. 发明授权

US5305192A Switching regulator circuit using magnetic flux-sensing 失效
标题翻译：开关稳压电路使用磁通检测
公开(公告)号：US5305192A
公开(公告)日：1994-04-19
申请号：US786718
申请日：1991-11-01
申请人： Anthony K. Bonte , Carl T. Nelson
发明人： Anthony K. Bonte , Carl T. Nelson
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： Control circuits for a switching voltage regulator circuit which uses magnetic flux sensing are provided. These circuits can be used to improve output voltage regulation by reducing parasitic effects inherently present in magnetic flux-sensed feedback switching voltage regulator designs.
摘要翻译：提供了使用磁通检测的开关稳压电路的控制电路。这些电路可用于通过减少磁通量感测反馈开关电压调节器设计中固有地存在的寄生效应来改善输出电压调节。

10. 发明授权

US4843302A Non-linear temperature generator circuit 失效
标题翻译：非线性温度发生器电路
公开(公告)号：US4843302A
公开(公告)日：1989-06-27
申请号：US189479
申请日：1988-05-02
申请人： Robert C. Dobkin , Carl T. Nelson
发明人： Robert C. Dobkin , Carl T. Nelson
IPC分类号： G05F3/30
CPC分类号： G05F3/30 , Y10S323/907
摘要： A non-linear temperature correction circuit is provided which utilizes, in one embodiment, a pair of semiconductor elements such as a pair of transistors electrically connected to a common biasing current having a negative temperature coefficient and a negative temperature coefficient voltage is applied between the bases of the transistors. The output of one of the transistors is a non-linear output current which is non-linear with respect to temperature and where the output current has an inflection point.
摘要翻译：提供一种非线性温度校正电路，其在一个实施例中利用一对半导体元件，例如一对晶体管，其电连接到具有负温度系数和负温度系数电压的公共偏置电流，在基极的晶体管。一个晶体管的输出是非线性输出电流，其相对于温度是非线性的，并且其中输出电流具有拐点。

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