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    • 4. 发明授权
    • Accurate integrated oscillator circuit
    • 精密集成振荡电路
    • US5699024A
    • 1997-12-16
    • US643911
    • 1996-05-06
    • Gregory Jon ManloveMark Wendell Gose
    • Gregory Jon ManloveMark Wendell Gose
    • H03K3/0231H03L1/02H03B5/24
    • H03K3/0231H03L1/022
    • An accurate integrated oscillator circuit includes a first circuit generating a substantially temperature independent, or a linearly temperature dependent, reference current and a second circuit which is programmable to incrementally increase the reference current to a desired current level. A third circuit includes first and second capacitors and an oscillator output switchable between first and second output levels. The third circuit is responsive to a first charge value on the first capacitor, due to the reference current flowing therethrough, to switch the oscillator output to the first level while resetting the second capacitor to its uncharged state, and to a second charge value on the second capacitor, due to the reference current flowing therethrough, to switch the oscillator output to the second level while resetting the first capacitor to its uncharged state. The oscillator circuit is preferably formed of a single integrated circuit and has an adjustable center frequency.
    • 精确的集成振荡器电路包括产生基本不依赖于温度的或者线性温度依赖的参考电流的第一电路和可编程以将参考电流逐渐增加到期望电流电平的第二电路。 第三电路包括第一和第二电容器和可在第一和第二输出电平之间切换的振荡器输出。 第三电路响应于第一电容器上的第一电荷值,由于参考电流流过其中,在将第二电容器复位到其未充电状态时将振荡器输出切换到第一电平,并且在第二电荷值 第二电容器由于参考电流流过其中,以将振荡器输出切换到第二电平,同时将第一电容器复位到其不充电状态。 振荡电路优选由单个集成电路形成并且具有可调节的中心频率。
    • 5. 发明申请
    • High Side Current Sense Amplifier
    • 高边电流检测放大器
    • US20130271216A1
    • 2013-10-17
    • US13448161
    • 2012-04-16
    • Hengsheng LiuEdson Wayne PorterGregory Jon Manlove
    • Hengsheng LiuEdson Wayne PorterGregory Jon Manlove
    • H03F3/45
    • G01R19/0092G01R1/203H03F1/26H03F3/393H03F3/45179H03F3/45632H03F2200/261H03F2200/462H03F2200/481H03F2203/45548
    • A single stage current sense amplifier is described that generates a differential output that is proportional to a current through a sense resistor. The voltage across the sense resistor is Vsense. The current sense amplifier includes a differential transconductance amplifier having high impedance input terminals. An on-chip RC filter filters transients in the Vsense signal. A feedback circuit for each leg of the amplifier causes a pair of input transistors to conduct a fixed constant current irrespective of Vsense, which stabilizes the transconductance. A gain control resistor (Re) is coupled across terminals of the pair of input transistors and has Vsense across it. The current through the gain control resistor is therefore Vsensex1/Re. A level shifting circuit coupled to each of the input transistors lowers a common mode voltage at an output of the amplifier. Chopper circuits at the input and output cancel any offset voltages.
    • 描述了单级电流检测放大器,其产生与通过检测电阻器的电流成比例的差分输出。 检测电阻两端的电压为Vsense。 电流检测放大器包括具有高阻抗输入端的差分跨导放大器。 片内RC滤波器对Vsense信号中的瞬变进行滤波。 放大器的每个支路的反馈电路使得一对输入晶体管能够导通固定的恒定电流,而与Vsense无关,这稳定跨导。 增益控制电阻(Re)耦合在该对输入晶体管的端子之间,并且在其上具有Vsense。 因此,通过增益控制电阻的电流为Vsensex1 / Re。 耦合到每个输入晶体管的电平移动电路在放大器的输出处降低共模电压。 输入和输出的斩波电路可以消除任何偏移电压。
    • 7. 发明授权
    • Analog signal processing system for determining airbag deployment
    • 用于确定安全气囊部署的模拟信号处理系统
    • US06175299B1
    • 2001-01-16
    • US08610021
    • 1996-03-04
    • Gregory Jon ManloveWalter Kirk KosiakRichard Joseph RavasJiyao Liu
    • Gregory Jon ManloveWalter Kirk KosiakRichard Joseph RavasJiyao Liu
    • B60Q100
    • B60R21/01332B60R21/0132B60R21/01336
    • An analog signal processing system for determining airbag deployment includes a first low pass filter receiving a conditioned analog accelerometer signal and providing an analog acceleration signal therefrom. A first comparator/latch circuit receives the analog acceleration signal and provides a first signal to a logic circuit. The analog acceleration signal is further provided to a first integrator which converts the signal to a first velocity signal and provides the first velocity signal to a second comparator/latch circuit which provides a second logic level signal to the logic circuit. A second low pass filter receives the analog acceleration signal and provides a low frequency analog acceleration signal to a third comparator/latch circuit which provides a third signal to the logic circuit. The low frequency analog acceleration signal is further received by a second integrator circuit which converts the signal to a second velocity signal and provides the second velocity signal to a fourth comparator/latch circuit which provides a fourth signal to the logic circuit. The logic circuit performs a logic operation on the various logic level signals to provide an airbag deployment signal therefrom. Each comparator/latch circuit has a comparator threshold value associated therewith provided by a threshold circuit. The system is enabled for a preset time period after detecting a predefined acceleration level to provide a time-independent analog algorithm for evaluating the analog acceleration signal for possible airbag deployment.
    • 一种用于确定安全气囊部署的模拟信号处理系统包括:第一低通滤波器,其接收经调节的模拟加速度计信号并从其提供模拟加速度信号。 第一比较器/锁存电路接收模拟加速度信号并向逻辑电路提供第一信号。 模拟加速度信号进一步提供给第一积分器,该积分器将该信号转换成第一速度信号,并将第一速度信号提供给向逻辑电路提供第二逻辑电平信号的第二比较器/锁存电路。 第二低通滤波器接收模拟加速度信号,并向第三比较器/锁存电路提供低频模拟加速度信号,该第三比较器/锁存电路向逻辑电路提供第三信号。 低频模拟加速度信号由第二积分器电路进一步接收,该第二积分器电路将信号转换为第二速度信号,并将第二速度信号提供给向逻辑电路提供第四信号的第四比较器/锁存电路。 逻辑电路对各种逻辑电平信号进行逻辑运算,从而提供气囊展开信号。 每个比较器/锁存电路具有由阈值电路提供的与其相关联的比较器阈值。 在检测到预定义的加速度水平之后,系统启用预设时间段,以提供用于评估模拟加速度信号以用于可能的气囊部署的时间无关的模拟算法。
    • 9. 发明授权
    • One-time programmable latch which allows volatile writes prior to
permanent programming
    • 一次性可编程锁存器,允许永久编程之前的易失性写入
    • US5856941A
    • 1999-01-05
    • US929457
    • 1997-09-15
    • Mark Russell KeyseGregory Jon ManlovePedro E. Castillo-BorellySeyed Ramezan Zarabadi
    • Mark Russell KeyseGregory Jon ManlovePedro E. Castillo-BorellySeyed Ramezan Zarabadi
    • G11C16/04G11C11/00
    • G11C16/0441
    • A cross-coupled latch circuit that is a one-time programmable latch that allows volatile temporary writes to the latch prior to permanent programming of the latch. The latch circuit includes first and second programmable FET devices that include poly-poly capacitators in series with the gate terminal of each device. A pair of PMOS FET devices combine with the programmable devices to make up the latch. The latch circuit includes other FET devices that are switched on and off depending on whether the latch is being permanently programmed, temporarily written to, or reset. A NAND gate is provided such that a logical high output on the NAND gate allows the first programmable device to be temporarily programmed with a logical one and permanently programmed with a logical zero. A NOR gate is provided such that a logical high on the NOR gate allows the second programmable device to be temporarily programmed with a logical zero and permanently programmed with a logical one.
    • 交叉耦合锁存电路,其是在锁存器的永久编程之前允许对锁存器的易失性临时写入的一次性可编程锁存器。 锁存电路包括第一和第二可编程FET器件,其包括与每个器件的栅极端子串联的多晶硅电容器。 一对PMOS FET器件与可编程器件组合构成锁存器。 锁存电路包括根据锁存器是被永久编程,临时写入还是复位而导通和关断的其他FET器件。 提供NAND门,使得NAND门上的逻辑高输出允许第一可编程器件以逻辑1临时编程并且用逻辑零永久编程。 NOR门被提供,使得NOR门上的逻辑高电平允许第二可编程器件被临时编程为逻辑0并且用逻辑0永久编程。
    • 10. 发明授权
    • High side current sense amplifier
    • 高边电流检测放大器
    • US08648623B2
    • 2014-02-11
    • US13448161
    • 2012-04-16
    • Hengsheng LiuEdson Wayne PorterGregory Jon Manlove
    • Hengsheng LiuEdson Wayne PorterGregory Jon Manlove
    • G01R19/00
    • G01R19/0092G01R1/203H03F1/26H03F3/393H03F3/45179H03F3/45632H03F2200/261H03F2200/462H03F2200/481H03F2203/45548
    • A single stage current sense amplifier is described that generates a differential output that is proportional to a current through a sense resistor. The voltage across the sense resistor is Vsense. The current sense amplifier includes a differential transconductance amplifier having high impedance input terminals. An on-chip RC filter filters transients in the Vsense signal. A feedback circuit for each leg of the amplifier causes a pair of input transistors to conduct a fixed constant current irrespective of Vsense, which stabilizes the transconductance. A gain control resistor (Re) is coupled across terminals of the pair of input transistors and has Vsense across it. The current through the gain control resistor is therefore Vsensex1/Re. A level shifting circuit coupled to each of the input transistors lowers a common mode voltage at an output of the amplifier. Chopper circuits at the input and output cancel any offset voltages.
    • 描述了单级电流检测放大器,其产生与通过检测电阻器的电流成比例的差分输出。 检测电阻两端的电压为Vsense。 电流检测放大器包括具有高阻抗输入端的差分跨导放大器。 片内RC滤波器对Vsense信号中的瞬变进行滤波。 放大器的每个支路的反馈电路使得一对输入晶体管能够导通固定的恒定电流,而与Vsense无关,这稳定跨导。 增益控制电阻(Re)耦合在该对输入晶体管的端子之间,并且在其上具有Vsense。 因此,通过增益控制电阻的电流为Vsensex1 / Re。 耦合到每个输入晶体管的电平移动电路在放大器的输出处降低共模电压。 输入和输出的斩波电路可以消除任何偏移电压。