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    • 5. 发明申请
    • Hardware Efficient On-Chip Digital Temperature Coefficient Voltage Generator and Method
    • 硬件高效片上数字温度系数电压发生器及方法
    • US20120256772A1
    • 2012-10-11
    • US13083515
    • 2011-04-08
    • Barkat A. WaniRaul-Adrian Cernea
    • Barkat A. WaniRaul-Adrian Cernea
    • H03M1/02
    • G11C16/30G11C5/145
    • An on-chip DC voltage generator and hardware efficient method provide for generating linear DC voltages with a programmable negative temperature coefficient. A temperature-dependent DC voltage is digitally derived from an on-chip temperature readout, a programmable digital word to control the temperature coefficient and a programmable digital word to adjust the digital level. The digital result is applied to a resistor string digital to analog converter (DAC) to generate an analog DC voltage with a negative temperature slope. Additionally, another programmable digital word for trimming allows convergence at a given temperature of voltages having a common level but different temperature coefficients. These voltages can be applied to the word line in the flash memory and track the threshold voltage of the memory cell, which has a negative temperature coefficient, such that the difference between the gate voltage and the threshold voltage is constant over temperature.
    • 片上直流电压发生器和硬件有效的方法提供可编程负温度系数的线性直流电压。 温度依赖的直流电压由片上温度读数数字地导出,用于控制温度系数的可编程数字字和可编程数字字来调节数字电平。 数字结果应用于电阻串数模转换器(DAC)以产生具有负温度斜率的模拟直流电压。 此外,用于修整的另一个可编程数字字允许在具有共同电平但不同温度系数的电压的给定温度下会聚。 这些电压可以施加到闪速存储器中的字线,并且跟踪具有负温度系数的存储单元的阈值电压,使得栅极电压和阈值电压之间的差在温度上是恒定的。
    • 6. 发明授权
    • Power supply apparatus
    • 电源设备
    • US08193724B2
    • 2012-06-05
    • US11883038
    • 2006-01-25
    • Mitsuaki MiguchiTaisuke ChidaGo Ezaki
    • Mitsuaki MiguchiTaisuke ChidaGo Ezaki
    • G05F1/00H05B39/04H03M1/02
    • H05B33/0815H02M3/07H02M2001/0045
    • In the power supply apparatus which performs voltage conversion of an input voltage (Vbat), with a predetermined set voltage as a target value, and outputs the converted voltage, a boost ratio setting unit sets a boost ratio (XCP) of the charge pump circuit based on the input voltage (Vbat) and a predetermined set voltage. A voltage adjustment unit is a regulator circuit, and adjusts voltage (Vx) so that output voltage (Vout) of the charge pump circuit approaches the set voltage. An output voltage setting unit generates a predetermined set voltage as a digital value (Dset). An A/D converter performs analog-digital conversion of the input voltage (Vbat). The boost ratio setting unit sets the boost ratio based on a result of comparing an input voltage (Ddet) that has undergone analog-digital conversion, and the set voltage (Dset).
    • 在以预定设定电压作为目标值进行输入电压(Vbat)的电压转换并输出转换后的电压的电源装置中,升压比设定部设定电荷泵电路的升压比(XCP) 基于输入电压(Vbat)和预定的设定电压。 电压调节单元是调节器电路,并且调整电压(Vx)使得电荷泵电路的输出电压(Vout)接近设定电压。 输出电压设定单元产生预定的设定电压作为数字值(Dset)。 A / D转换器对输入电压(Vbat)进行模数转换。 升压比设定单元根据比较经过模拟数字转换的输入电压(Ddet)和设定电压(Dset)的结果来设定升压比。
    • 7. 发明申请
    • CONTROLLER TO CONTROL ELECTRICAL POWER OF LOAD IN CONSTANT
    • 控制器持续控制负载电力
    • US20110254715A1
    • 2011-10-20
    • US13085577
    • 2011-04-13
    • Tomoko IKAGAWA
    • Tomoko IKAGAWA
    • H03M1/02
    • H05B1/0227
    • A heater controller for controlling a heater precisely in the equi-power mode is disclosed. The controller includes a current source, a voltage monitor to detect a voltage drop caused in the heater, and a controller. The voltage drop may be converted to the digital form as refereeing to the first reference, while, the heater current is converted from the digital form as referring to the second reference. The second reference shows substantial temperature dependence, while, the first reference has lesser temperature dependence. The control corrects the temperature dependence of the second reference as referring to the first reference.
    • 公开了一种用于以等功率模式精确控制加热器的加热器控制器。 控制器包括电流源,用于检测在加热器中引起的电压降的电压监视器和控制器。 电压降可以转换为数字形式,作为裁定到第一参考,而加热器电流从数字形式转换为参考第二参考。 第二个参考文献显示了实质的温度依赖性,而第一个参考温度依赖性较小。 控制器将第二个参考的温度依赖性修正为参考第一个参考。
    • 9. 发明申请
    • OPERATIONAL AMPLIFIER AND PIPELINE AD CONVERTER
    • 操作放大器和管道AD转换器
    • US20110175759A1
    • 2011-07-21
    • US13079259
    • 2011-04-04
    • Daisuke NOMASAKIKoji Oka
    • Daisuke NOMASAKIKoji Oka
    • H03M1/02
    • H03F3/45183H01L27/0629H01L27/0811H01L27/088H03F2203/45352H03F2203/45371H03F2203/45486H03M1/0682H03M1/0695H03M1/442
    • A differential voltage interconnect (W101a) electrically connects the gate electrode of a transistor to be used among differential transistors (T101a, T101a, . . . ) to an input node receiving an input voltage (Vinn), and a differential voltage interconnect (W101b) electrically connects the gate electrode of a transistor to be used among differential transistors (T101b, T101b, . . . ) to an input node receiving an input voltage (Vinp). A bias voltage interconnect (W102) electrically connects the gate electrode of a transistor to be used among current source transistors (T102, T102, . . . ) to a bias node receiving a bias voltage (VBN), and a bias voltage interconnect (W103) electrically connects the gate electrodes of transistors to be used among load transistors (T103a, T103a, . . . , T103b, T103b, . . . ) to a bias node receiving a bias voltage (VBP).
    • 差分电压互连(W101a)将要用于差分晶体管(T101a,T101a ...等)的晶体管的栅极电连接到接收输入电压(Vinn)的输入节点和差分电压互连(W101b) 将待使用的晶体管的栅电极(T101b,T101b ...)电连接到接收输入电压(Vinp)的输入节点。 偏置电压互连(W102)将要用于电流源晶体管(T102,T102 ......)中的晶体管的栅极电连接到接收偏置电压(VBN)的偏置节点和偏置电压互连(W103) )将负载晶体管(T103a,T103a,...,T103b,T103b ...等)中使用的晶体管的栅极电连接到接收偏置电压(VBP)的偏置节点。
    • 10. 发明申请
    • Successive aproximation A/D Converter
    • 连续近似A / D转换器
    • US20110133963A1
    • 2011-06-09
    • US12928122
    • 2010-12-03
    • Hirotaka Kawai
    • Hirotaka Kawai
    • H03M1/02
    • H03M1/0845H03M1/468H03M1/68H03M1/785H03M1/806
    • A successive approximation A/D converter, includes a reference voltage generation circuit, a sample/hold circuit, a D/A converter circuit, a comparator, and a control circuit. A potential difference between the comparison target voltage generated by the D/A converter circuit and the internal analog voltage is applied to one input terminal of the comparator through a first signal line, and the reference voltage generation circuit is connected to the other input terminal of the comparator through a second signal line and a switch. Capacitive elements are disposed between the high potential power supply and the second signal line, and between the second signal line and the low potential power supply, respectively. The control circuit turns ON the switch to charge the first and second capacitive elements during a period when the sample/hold circuit samples and holds the internal analog voltage and turns OFF the switch in response to end of the period.
    • 逐次逼近A / D转换器包括参考电压产生电路,采样/保持电路,D / A转换器电路,比较器和控制电路。 由D / A转换器电路产生的比较目标电压与内部模拟电压之间的电位差通过第一信号线施加到比较器的一个输入端,并且参考电压产生电路连接到 比较器通过第二条信号线和一个开关。 电容元件分别设置在高电位电源和第二信号线之间以及第二信号线和低电位电源之间。 在采样/保持电路取样并保持内部模拟电压并响应于该周期结束而关断开关的时段期间,控制电路导通开关以对第一和第二电容元件充电。