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公开(公告)号：US07621671B2
公开(公告)日：2009-11-24
申请号：US11749487
申请日：2007-05-16
IPC分类号： G01K7/00
CPC分类号： H01L23/34 , H01L2924/0002 , H01L2924/00
摘要： Some embodiments discussed relate to an apparatus comprising a temperature sensor disposed in an integrated circuit, the temperature sensor including a bipolar transistor having a collector coupled to a portion of a substrate of the integrated circuit, and a bandgap reference circuit configured to generate a reference voltage, and a comparator coupled to the temperature sensor and the bandgap reference circuit, the comparator configured to receive a first voltage from the emitter of the bipolar transistor and the reference voltage from the bandgap reference circuit and generate a switch-off signal based on a voltage difference between the first voltage and the reference voltage.
摘要翻译： 所讨论的一些实施例涉及一种包括设置在集成电路中的温度传感器的装置，温度传感器包括双极晶体管，其具有耦合到集成电路的基板的一部分的集电极，以及带隙参考电路，被配置为产生参考电压 以及耦合到所述温度传感器和所述带隙基准电路的比较器，所述比较器被配置为从所述双极晶体管的发射极接收第一电压，并从所述带隙基准电路接收所述参考电压，并且基于电压产生关断信号 第一电压和参考电压之间的差值。
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公开(公告)号：US20080285623A1
公开(公告)日：2008-11-20
申请号：US11749487
申请日：2007-05-16
IPC分类号： G01K7/01
CPC分类号： H01L23/34 , H01L2924/0002 , H01L2924/00
摘要： Some embodiments discussed relate to an apparatus comprising a temperature sensor disposed in an integrated circuit, the temperature sensor including a bipolar transistor having a collector coupled to a portion of a substrate of the integrated circuit, and a bandgap reference circuit configured to generate a reference voltage, and a comparator coupled to the temperature sensor and the bandgap reference circuit, the comparator configured to receive a first voltage from the emitter of the bipolar transistor and the reference voltage from the bandgap reference circuit and generate a switch-off signal based on a voltage difference between the first voltage and the reference voltage.
摘要翻译： 所讨论的一些实施例涉及一种包括设置在集成电路中的温度传感器的装置，温度传感器包括双极晶体管，其具有耦合到集成电路的基板的一部分的集电极，以及带隙参考电路，被配置为产生参考电压 以及耦合到所述温度传感器和所述带隙基准电路的比较器，所述比较器被配置为从所述双极晶体管的发射极接收第一电压，并从所述带隙基准电路接收所述参考电压，并且基于电压产生关断信号 第一电压和参考电压之间的差值。
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公开(公告)号：US20050052254A1
公开(公告)日：2005-03-10
申请号：US10715338
申请日：2003-11-17
申请人： Albino Pidutti , Stefano Beria
发明人： Albino Pidutti , Stefano Beria
IPC分类号： H03K3/0231 , H03K17/0812 , H03K17/687 , H03K3/37
CPC分类号： H03K3/0231 , H03K17/08122 , H03K17/6871
摘要： A programmable oscillator comprises a capacitor; a current generator couplable to said capacitor that generates a charging current of said capacitor; further comprising at least one resistance coupled to said capacitor; a comparator coupled to said capacitor for comparing a voltage at the terminals of said capacitor with a prefixed reference voltage and for generating an output signal; a first switch, controlled by said output signal, coupled to said capacitor that creates a current path able to facilitate the discharging of said capacitor.
摘要翻译： 可编程振荡器包括电容器; 耦合到所述电容器的电流发生器，其产生所述电容器的充电电流; 还包括耦合到所述电容器的至少一个电阻器; 耦合到所述电容器的比较器，用于将所述电容器的端子处的电压与预定参考电压进行比较并用于产生输出信号; 由所述输出信号控制的第一开关耦合到所述电容器，其产生能够促进所述电容器放电的电流通路。
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24.发明授权Method and a circuit architecture for testing an integrated circuit comprising a programmable, non-volatile memory 有权用于测试包括可编程的非易失性存储器的集成电路的方法和电路架构公开(公告)号：US06381185B2
公开(公告)日：2002-04-30
申请号：US09782969
申请日：2001-02-14
IPC分类号： G11C700
CPC分类号： G11C29/50004 , G06F2201/81 , G11C16/04 , G11C29/50
摘要： A method for testing a programmable, nonvolatile memory including a matrix of memory cells is provided. A plurality of memory cells are programmed. The programmed memory cells are addressed in succession to identify a lowest of threshold voltage levels. The addressing for each memory location includes applying a selection voltage that is lower than the lowest threshold voltage level corresponding to a memory location currently being addressed. The bits are read from the programmed memory cells for the memory location currently being addressed. The reading is repeated while progressively changing the selection voltage supplied to the word line corresponding to the memory location currently being addressed until it is detected that at least one of the bits of the memory location currently being addressed has switched from a first logic level corresponding to a reading of a programmed memory cell to a second logic level corresponding to a reading of a non-programmed memory cell. The low threshold voltage level is compared in the memory location currently being addressed as determined in the reading with a stored value corresponding to the lowest of the low threshold voltages of the memory locations previously addressed.
摘要翻译： 提供了一种用于测试包括存储器单元矩阵的可编程非易失性存储器的方法。 多个存储单元被编程。 编程的存储器单元被连续寻址以识别阈值电压电平的最低值。 每个存储器位置的寻址包括施加低于对应于当前被寻址的存储器位置的最低阈值电压电平的选择电压。 这些位从当前正在寻址的存储器位置的已编程存储单元读取。 重复读取，同时逐渐改变提供给对应于当前正被寻址的存储器位置的字线的选择电压，直到检测到当前被寻址的存储器位置中的至少一个位已经从对应于 将编程的存储器单元读取到对应于非编程存储器单元的读取的第二逻辑电平。 在当前正在寻址的存储器位置中，在读取中确定的低阈值电压电平与对应于先前寻址的存储器位置的最低阈值电压的存储值进行比较。
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公开(公告)号：US07023289B2
公开(公告)日：2006-04-04
申请号：US10715338
申请日：2003-11-17
申请人： Albino Pidutti , Stefano Beria
发明人： Albino Pidutti , Stefano Beria
IPC分类号： H03B5/24 , H05B41/28 , H05B41/282
CPC分类号： H03K3/0231 , H03K17/08122 , H03K17/6871
摘要： A programmable oscillator comprises a capacitor; a current generator couplable to said capacitor that generates a charging current of said capacitor; further comprising at least one resistance coupled to said capacitor; a comparator coupled to said capacitor for comparing a voltage at the terminals of said capacitor with a prefixed reference voltage and for generating an output signal; a first switch, controlled by said output signal, coupled to said capacitor that creates a current path able to facilitate the discharging of said capacitor.
摘要翻译： 可编程振荡器包括电容器; 耦合到所述电容器的电流发生器，其产生所述电容器的充电电流; 还包括耦合到所述电容器的至少一个电阻器; 耦合到所述电容器的比较器，用于将所述电容器的端子处的电压与预定参考电压进行比较并用于产生输出信号; 由所述输出信号控制的第一开关耦合到所述电容器，其产生能够促进所述电容器放电的电流通路。
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26.发明授权Control method of the current flow in driver systems for brushless motors, particularly during the switching phase 有权无刷电机驱动系统中电流的控制方法，特别是在开关阶段公开(公告)号：US06534937B2
公开(公告)日：2003-03-18
申请号：US09823916
申请日：2001-03-30
申请人： Angelo Genova , Albino Pidutti , Aldo Novelli
发明人： Angelo Genova , Albino Pidutti , Aldo Novelli
IPC分类号： H02P706
摘要： A current control method controls current for drive systems of multi-phase brushless motors, in particular at phase switching, wherein the motor coils coupled to a common node are driven by applying a respective drive voltage to the free end of each coil via corresponding power stages. The method comprises switching the current flow from one phase to the next in the direction of rotation of the motor at the phase switch, thereby forcing the unaffected one of said coils by the phase switch into a state of high impedance. Advantageously, the decreasing rate of the current in the coil unaffected by the phase switch can be twice as high as the decreasing rate of the current in the phase being switched from.
摘要翻译： 电流控制方法控制多相无刷电动机的驱动系统的电流，特别是在相位切换中，其中耦合到公共节点的电动机线圈通过经由相应的功率级将相应的驱动电压施加到每个线圈的自由端来驱动 。 该方法包括在相位开关处切换电动机在旋转方向上的一相到下一相的电流，从而通过相开关将未受影响的一个线圈强制为高阻抗状态。 有利地，不受相位开关影响的线圈中的电流的降低速率可以是从切换的相中的电流的减小速率的两倍。
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公开(公告)号：US06297919B1
公开(公告)日：2001-10-02
申请号：US08957424
申请日：1997-10-24
IPC分类号： G11B509
CPC分类号： G11B5/02 , G11B5/012 , G11B5/09 , G11B2005/0013
摘要： A write head is described having a switchable damping resistance coupled in parallel with an inductor. The damping resistance is decoupled from the inductor by rendering a transistor nonconductive when a direction of current in the inductor changes. The damping resistance is then coupled to the inductor before oscillations begin in the current in the inductor. The decoupling of the damping resistor eliminates power dissipation in the damping resistor during a change in the direction of current in the inductor.
摘要翻译： 描述了具有与电感器并联耦合的可切换阻尼电阻的写头。 当电感器中的电流方向改变时，阻尼电阻通过使晶体管不导通而与电感器去耦。 然后在电感器中的电流开始振荡之前，将阻尼电阻耦合到电感器。 阻尼电阻器的去耦可以消除电感器电流方向变化时阻尼电阻器的功耗。
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28.发明授权Method and circuit for enabling rapid flux reversal in the coil of a write head associated with a computer disk drive, or the like 失效用于实现与计算机磁盘驱动器相关联的写入头的线圈中的快速磁通反转的方法和电路等
公开(公告)号：US6052017A
公开(公告)日：2000-04-18
申请号：US928447
申请日：1997-09-12
CPC分类号： H03K17/04106 , G11B5/022 , H03K17/6872 , H03K2217/0045
摘要： A method and apparatus, for applying a current to a coil of a write head assembly of a disk drive, or the like, to cause the flux within the coil to rapidly reverse, has an H-bridge having two pair of two switchable transistors. Each pair of the transistors is connected between a supply voltage and a reference potential, and is adapted to be connected to the coil between the two transistors of each pair. The two transistors of the first pair may be connected to receive a control signal to turn on complementary transistors of the first and second pair of transistors to selectively control current flow in the coil in first or second directions. A reference current source supplies a reference current, and one of the transistors in each of the first and second pairs of transistors is connected when turned on to mirror the reference current to control the currents in the coil. First and second parallel transistors are connected in parallel respectively with the mirror transistors, the first and second parallel transistors being connected to be turned on respectively by the control signal and the inverted control signal concurrently with the respective mirror transistor. A pair of timing elements turn off respective ones of the parallel transistors after a predetermined time so that when the parallel transistors are turned on, the current in the coil overshoots a value established by the mirror transistors.
摘要翻译： 一种用于将电流施加到盘驱动器等的写入头组件的线圈上以使线圈内的磁通快速反转的方法和装置具有具有两对两个可切换晶体管的H桥。 每对晶体管连接在电源电压和参考电位之间，并且适于连接到每对两个晶体管之间的线圈。 第一对的两个晶体管可以被连接以接收控制信号以导通第一和第二对晶体管的互补晶体管，以选择性地控制在第一或第二方向上的线圈中的电流。 参考电流源提供参考电流，并且当导通时连接第一和第二对晶体管中的每个晶体管中的一个晶体管以反映参考电流以控制线圈中的电流。 第一和第二并联晶体管分别与镜晶体管并联连接，第一和第二并联晶体管分别通过控制信号和反相控制信号分别连接到相应的镜像晶体管。 一对定时元件在预定时间之后关闭并联晶体管的各个，使得当并联晶体管导通时，线圈中的电流超过由镜晶体管建立的值。
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公开(公告)号：US5508602A
公开(公告)日：1996-04-16
申请号：US128791
申请日：1993-09-28
CPC分类号： H02M3/156
摘要： A power supply in which control of the switch-on instant of a power device of a boost-circuit (operating in a discontinuous mode) is implemented by monitoring the current which actually flows through the "fly-back" inductance. The current is monitored on a sensing resistance, and, by the use of a comparator, a signal is produced for enabling/disabling the transfer to an input of a PWM driving circuit of a switch-on signal produced by a null detector. This configuration provide good noise immunity, which is particularly useful in power-factor-correction applications, and reduced power dissipation.
摘要翻译： 通过监视实际上流过“回飞”电感的电流来实现对升压电路的功率器件的接通瞬间（以不连续模式操作）的控制的电源。 在感测电阻上监视电流，并且通过使用比较器，产生用于使能/禁止向由空检测器产生的接通信号的PWM驱动电路的输入的传输的信号。 这种配置提供了良好的抗噪声能力，这在功率因数校正应用中特别有用，并降低了功耗。
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公开(公告)号：US5160854A
公开(公告)日：1992-11-03
申请号：US734911
申请日：1991-07-24
申请人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
发明人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
IPC分类号： H03K17/04 , H03K17/0412 , H03K17/06 , H03K17/687 , H03K19/0185
CPC分类号： H03K17/06 , H03K17/04123 , H03K17/063
摘要： A level shifter, particularly suited for driving power stages for supplying power to integrated circuits, includes a DMOS transistor (40) which is driven by a digital signal source (42) and has a load resistor (44) as its drain load. A shifted output signal develops at the ends of said load resistor. The drain (V1) of the DMOS transistor is connected to the input of an inverter (46), while a Zener diode (54) and a second transistor (52) are connected in parallel with the load resistor (44), the gate of the second transistor (52) being driven by the output of the inverter (46). The output of the inverter (46) can be connected to the input of a drive stage (48), the output of which drives a power stage (50) for supplying power to an integrated circuit.
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