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1.发明授权Method to protect gate-source elements of external power fETS from large pre-drive capacity 失效保护外部电源的栅极源元件的方法不受大容量的预驱动
公开(公告)号：US5777502A
公开(公告)日：1998-07-07
申请号：US693765
申请日：1996-08-07
申请人： Wayne T. Chen , Steven C. Jones , Stephen C. Kwan
发明人： Wayne T. Chen , Steven C. Jones , Stephen C. Kwan
IPC分类号： H03K5/08 , H03K17/687
CPC分类号： H03K17/0822 , H03K2217/0036 , H03K2217/0063
摘要： A circuit (10) and method for protecting the gate-source elements of an FET includes a circuit (12, 13) for providing a pullup gate drive current to the gate-source elements. A voltage sensing circuit (45) senses a voltage on the gate-source elements to produce an indication if the voltage has exceeded a predetermined level. The voltage sensing circuit (45) has a zener diode (48) and a current mirror with first (52) and second (51) current flow paths. The zener diode (48) and the first flow path (52) are connected between the gate and a source of the FET. When a voltage between the gate and source of the FET exceeds the breakdown voltage of the zener diode (48) and one V.sub.gs in the current mirror, a current flows in the first flow path (52) producing a current flow in the second flow path (51). A circuit (20, 23, 62, 58, 60) reduces the pullup gate drive current in response to the current in the second flow path (51).
摘要翻译： 用于保护FET的栅极 - 源极元件的电路（10）和方法包括用于向栅极 - 源极元件提供上拉栅极驱动电流的电路（12,13）。 电压检测电路（45）感测栅极 - 源极元件上的电压，以产生电压是否超过预定电平的指示。 电压感测电路（45）具有齐纳二极管（48）和具有第一（52）和第二（51）电流流动路径的电流镜。 齐纳二极管（48）和第一流路（52）连接在栅极和FET的源极之间。 当FET的栅极和源极之间的电压超过齐纳二极管（48）的击穿电压和电流反射镜中的一个Vgs时，电流在第一流动路径（52）中流动，从而在第二流动路径 （51）。 电路（20,23,62,58,60）响应于第二流路（51）中的电流而减小上拉栅极驱动电流。
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2.发明授权MOS uni-directional, differential voltage amplifier capable of amplifying signals having input common-mode voltage beneath voltage of lower supply and integrated circuit substrate 失效MOS单向差分电压放大器，能够放大具有低电压和集成电路基板电压以下的输入共模电压的信号
公开(公告)号：US5463347A
公开(公告)日：1995-10-31
申请号：US353604
申请日：1994-12-12
IPC分类号： H01L27/088 , H03F1/22 , H03F3/45 , H03F3/16
CPC分类号： H03F3/45179 , H01L27/088 , H03F1/223 , H03F2203/45394
摘要： An amplifier, preferably an integrated circuit, capable of accepting input common mode voltages below the circuit reference voltage or substrate voltage in the case of an integrated circuit. The amplifier comprises a differential voltage input having higher and lower voltage terminals, a first NMOS transistor coupled between a voltage supply and the higher voltage terminal and a second NMOS transistor coupled between the voltage supply and the lower voltage terminal. A third NMOS transistor is coupled between the voltage supply and the first transistor gate, a fourth NMOS transistor is coupled between the voltage supply and the second transistor gate and a sink resistor is coupled between the gate of the second transistor and the lower voltage terminal. A differential resistor is coupled between the gates of the first and second transistors. The first and second transistors include a source and a backgate coupled to each other and electrically isolated from the substrate with the source of each of the first and second transistors being coupled to a different one of the input terminals. The third and fourth transistors include a source and a backgate coupled to each other and electrically isolated from the substrate with the source of each of the third and fourth transistors coupled to opposite ends of the differential resistor. The circuit further includes a PMOS mirror circuit for providing an output.
摘要翻译： 在集成电路的情况下，能够接受低于电路参考电压或衬底电压的输入共模电压的放大器，优选集成电路。 放大器包括具有更高和更低电压端子的差分电压输入端，耦合在电压源和较高电压端子之间的第一NMOS晶体管和耦合在电压源和低电压端子之间的第二NMOS晶体管。 第三NMOS晶体管耦合在电压源和第一晶体管栅极之间，第四NMOS晶体管耦合在电压源和第二晶体管栅极之间，并且吸收电阻耦合在第二晶体管的栅极和低电压端之间。 差分电阻耦合在第一和第二晶体管的栅极之间。 第一和第二晶体管包括彼此耦合并且与衬底电隔离的源极和后栅极，其中第一和第二晶体管中的每一个的源极耦合到不同的一个输入端子。 第三和第四晶体管包括彼此耦合并且与衬底电隔离的源极和后栅极，其中第三和第四晶体管中的每一个的源极耦合到差分电阻器的相对端。 电路还包括用于提供输出的PMOS镜电路。
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公开(公告)号：US5111071A
公开(公告)日：1992-05-05
申请号：US681439
申请日：1991-04-03
申请人： Stephen C. Kwan , Steven C. Jones
发明人： Stephen C. Kwan , Steven C. Jones
IPC分类号： G01R19/165
CPC分类号： G01R19/16576
摘要： A threshold detection circuit (10) is provided which comprises an input node (12) and an output node (14). The input node (12) is coupled to a current mirror (22) through a resistor (32). The current mirror (22) is further coupled to another current mirror (16), which is arranged to receive a reference current proportional to absolute temperature. The reference current is mirrored and, having been increased by a multiplier is received by a current sink (28). When the voltage level at the input node (12) exceeds a predetermined voltage threshold level, the current exceeding the amount sinkable by the current sink (28) is directed to the base of a switching transistor (30) coupled to the output node (14), and produces an output voltage level at the output node (14) indicative of the threshold voltage level being reached an/or exceeded at the input node (12). The predetermined threshold voltage may be at a level exceeding the circuit supply voltage level and is independent of ambient operating temperature.
摘要翻译： 提供了一种阈值检测电路（10），其包括输入节点（12）和输出节点（14）。 输入节点（12）通过电阻（32）耦合到电流镜（22）。 电流镜（22）还耦合到另一电流镜（16），其被布置成接收与绝对温度成比例的参考电流。 参考电流被镜像，并且已经由乘法器增加，被电流接收器（28）接收。 当输入节点（12）处的电压电平超过预定电压阈值电平时，超过电流吸收器（28）可以沉降的量的电流被引导到耦合到输出节点（14）的开关晶体管（30）的基极 ），并且在输出节点（14）处产生指示在输入节点（12）处达到或超过的阈值电压电平的输出电压电平。 预定阈值电压可以处于超过电路电源电压电平的水平，并且与环境工作温度无关。
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4.发明授权Turn-off circuit to provide a discharge path from a first node to a second node 失效关闭电路以提供从第一节点到第二节点的放电路径
公开(公告)号：US5475329A
公开(公告)日：1995-12-12
申请号：US176815
申请日：1994-01-04
申请人： Steven C. Jones , Wayne T. Chen
发明人： Steven C. Jones , Wayne T. Chen
IPC分类号： H03K17/04 , H03K17/042 , H03K17/082 , H03K17/695 , H03K3/00 , H03K5/08
CPC分类号： H03K17/04206 , H03K17/0822
摘要： A turn-off circuit is disclosed that includes a turn-off device (14) having a first current path connected to a first node, a second current path connected to a second node and an input. A control circuit (16) has an output connected to the input of the turn-off device (14) and has an input. A hold-off device (18) has an output connected to the first node and an input. Together, the turn-off device (14), the control circuit (16) and the hold-off device (18) comprise a turn-off circuit (20). A control signal CONTROL 2 is connected to the input of the control circuit (16), and a control signal CONTROL 3 is connected to the input of the hold-off device (18).
摘要翻译： 公开了一种关断电路，其包括具有连接到第一节点的第一电流路径，连接到第二节点的第二电流路径和输入的关断装置（14）。 控制电路（16）具有连接到关断装置（14）的输入并具有输入的输出。 保持装置（18）具有连接到第一节点和输入的输出。 关断装置（14），控制电路（16）和保持装置（18）一起包括关断电路（20）。 控制信号CONTROL2连接到控制电路（16）的输入，并且控制信号CONTROL3连接到保持装置（18）的输入端。
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公开(公告)号：US6147526A
公开(公告)日：2000-11-14
申请号：US213308
申请日：1998-12-16
CPC分类号： H02M3/1563 , H02M3/1588 , Y02B70/1466
摘要： A DC--DC converter having an input node receiving an input voltage V.sub.IN and generating an output voltage V.sub.OUT. A reference voltage generator provides a voltage V.sub.REF and a hysteresis voltage generator provides a voltage V.sub.HYST. A first comparator generates a signal determined from a difference between V.sub.REF and V.sub.OUT. A second comparator generates a signal determined from a difference between V.sub.OUT and V.sub.HYST. A latch is coupled to receive the outputs of the first and second comparators, and to generate an output. A driver circuit receives the latch output and generates a PWM signal used to switch the output stage. A double pulse suppression circuit masks off the latch inputs for a preselected time during the switching intervals fo the main power transistors to eliminate noise jitter.
摘要翻译： 一种具有输入节点接收输入电压VIN并产生输出电压VOUT的DC-DC转换器。 参考电压发生器提供电压VREF，并且滞后电压发生器提供电压VHYST。 第一比较器产生从VREF和VOUT之间的差确定的信号。 第二比较器产生由VOUT和VHYST之间的差确定的信号。 锁存器被耦合以接收第一和第二比较器的输出，并且产生输出。 驱动器电路接收锁存器输出并产生用于切换输出级的PWM信号。 双脉冲抑制电路在主功率晶体管的切换间隔期间屏蔽锁存器输入预选的时间以消除噪声抖动。
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公开(公告)号：USD1002317S1
公开(公告)日：2023-10-24
申请号：US29706752
申请日：2019-09-23
申请人： Steven C. Jones
设计人： Steven C. Jones
摘要： For a more complete understanding of the present disclosure, the objects and ornamentation thereof, reference is now made to the ensuing descriptions taken in connection with the accompanying drawings described as follows.
FIG. 1 is a perspective view of the circular saw bracket, according to an example of the present disclosure.
FIG. 2 is a left side elevational view of the circular saw bracket, according to an example of the present disclosure.
FIG. 3 is a perspective view of the circular saw bracket in use, according to an example of the present disclosure. Features shown in broken lines in FIG. 3 are for illustrating the environmental structure, e.g., the circular saw and the structure to which the circular saw bracket may mount, and form no part of the claimed design.
The present design is a circular saw bracket for hanging a circular saw. The circular saw bracket includes a body and a ledge which protrudes outwardly from the body. A lip protrudes upwardly from an end of the ledge.-
7.发明授权Micro-processor based motor control integrated circuit including a boost regulated DC-to-DC converter 失效基于微处理器的电机控制集成电路，包括升压调节DC-DC转换器
公开(公告)号：US5764007A
公开(公告)日：1998-06-09
申请号：US425853
申请日：1995-04-20
申请人： Steven C. Jones
发明人： Steven C. Jones
CPC分类号： H02P23/0077 , H03K17/063 , Y10T307/675
摘要： A single chip integrated circuit includes a boost regulated DC-to-DC converter and gate drive circuits integrated on the same die with a micro-processor, along with high density digital logic functions, analog functions, etc. The gate drive circuits are used to drive external power FETs, particularly high side NMOS. The micro-processor may also be some type of micro-controller or digital signal processor. By being able to place these functions on a single integrated circuit, a motor or actuator control system can be placed on a single chip. With appropriate sensors to provide feedback to the integrated circuit, a system which is capable of executing actuator move functions, such as position, velocity, velocity profile, torque, etc., and sequencing these events as well is included.
摘要翻译： 单芯片集成电路包括一个升压调节型DC-DC转换器和与微处理器集成在同一芯片上的栅极驱动电路，以及高密度数字逻辑功能，模拟功能等。门驱动电路用于 驱动外部功率FET，特别是高侧NMOS。 微处理器也可以是某种类型的微控制器或数字信号处理器。 通过能够将这些功能放置在单个集成电路上，可以将电机或执行器控制系统放置在单个芯片上。 使用适当的传感器向集成电路提供反馈，包括能够执行致动器移动功能的系统，例如位置，速度，速度分布，转矩等，并对这些事件进行排序。
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公开(公告)号：US5301706A
公开(公告)日：1994-04-12
申请号：US811309
申请日：1991-12-20
申请人： Steven C. Jones
发明人： Steven C. Jones
CPC分类号： E04H15/001 , E04H15/40 , Y10S135/904
摘要： The present invention is a complete self-contained portable blind used to conceal a hunter, nature photographer, or nature watcher. The blind is configured such that it fits within an easily carried storage container.
摘要翻译： 本发明是用于隐藏猎人，自然摄影师或自然观察者的完全独立的便携式盲人。 盲板被配置为使得其配合在容易携带的存储容器内。
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公开(公告)号：US6008603A
公开(公告)日：1999-12-28
申请号：US181930
申请日：1998-10-28
申请人： Steven C. Jones , Keith Wolford
发明人： Steven C. Jones , Keith Wolford
CPC分类号： H02P25/03 , H02P25/024
摘要： A novel two-phase brushless motor drive assembly. The motor drive assembly is made of two parts, a motor assemble and a motor control circuit.The motor assembly, receives a first wire providing electric power, a second wire providing a ground connection, and a third wire. The motor assembly includes, a two-phase brushless motor. It also includes a motor drive circuit, responsive to a speed control voltage signal on the third wire and the electric power on the first wire, providing drive power to the motor to drive the motor to a speed determined by the speed control voltage signal. The motor assembly also includes a sensor circuit providing a sensed speed current signal on the third wire, having a current representing the rotational speed of the motor.The motor control circuit is coupled to the third wire, and includes a speed control circuit responsive to a speed control signal for generating the speed control voltage signal on the third wire at a voltage corresponding to a speed indicated by the speed control signal. It also includes a current sensing circuit providing a speed signal, corresponding to the sensed speed current signal on the third wire, such that the voltage of the speed control voltage signal is substantially unaffected by changes in the current of the sensed speed current signal, and such that the current of the sensed speed current signal is substantially unaffected by changes in the voltage of the speed control voltage signal.
摘要翻译： 一种新型的两相无刷电机驱动装置。 电机驱动组件由两部分组成，一组电动机组合和一个电动机控制电路。 马达组件接收提供电力的第一线，提供接地连接的第二线和第三线。 电动机组件包括两相无刷电动机。 它还包括电动机驱动电路，响应于第三线上的速度控制电压信号和第一线上的电力，向电动机提供驱动电力以将电动机驱动到由速度控制电压信号确定的速度。 马达组件还包括传感器电路，其在第三导线上提供感测的速度电流信号，其具有表示马达转速的电流。 电动机控制电路耦合到第三线，并且包括响应于速度控制信号的速度控制电路，用于以对应于由速度控制信号指示的速度的电压在第三线上产生速度控制电压信号。 它还包括电流感测电路，其提供对应于第三导线上感测到的速度电流信号的速度信号，使得速度控制电压信号的电压基本上不受感测的速度电流信号的电流的变化的影响，以及 使得感测的速度电流信号的电流基本上不受速度控制电压信号的电压的变化的影响。
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公开(公告)号：US5952798A
公开(公告)日：1999-09-14
申请号：US181252
申请日：1998-10-28
申请人： Steven C. Jones , Keith Wolford
发明人： Steven C. Jones , Keith Wolford
CPC分类号： H02P6/08
摘要： A novel two-phase brushless motor drive assembly. The motor drive assembly is made of two parts, a motor assemble and a motor control circuit.The motor assembly, receives a first wire providing electric power, a second wire providing a ground connection, and a third wire. The motor assembly includes, a two-phase brushless motor. It also includes a motor drive circuit, responsive to a speed control voltage signal on the third wire and the electric power on the first wire, providing drive power to the motor to drive the motor to a speed determined by the speed control voltage signal. The motor assembly also includes a sensor circuit providing a sensed speed current signal on the third wire, having a current representing the rotational speed of the motor.The motor control circuit is coupled to the third wire, and includes a speed control circuit responsive to a speed control signal for generating the speed control voltage signal on the third wire at a voltage corresponding to a speed indicated by the speed control signal. It also includes a current sensing circuit providing a speed signal, corresponding to the sensed speed current signal on the third wire, such that the voltage of the speed control voltage signal is substantially unaffected by changes in the current of the sensed speed current signal, and such that the current of the sensed speed current signal is substantially unaffected by changes in the voltage of the speed control voltage signal.
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