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1. 发明授权

US07777466B2 Voltage regulator or non-volatile memories implemented with low-voltage transistors 有权
标题翻译：用低压晶体管实现的稳压器或非易失性存储器
公开(公告)号：US07777466B2
公开(公告)日：2010-08-17
申请号：US11844470
申请日：2007-08-24
申请人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Giovanni Campardo , Rino Micheloni
发明人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Giovanni Campardo , Rino Micheloni
IPC分类号： G05F1/40
CPC分类号： G11C5/147 , G05F1/565 , G11C16/30
摘要： A voltage regulator integrated in a chip of semiconductor material is provided. The regulator has a first input terminal for receiving a first voltage and an output terminal for providing a regulated voltage being obtained from the first voltage, the regulator including: a differential amplifier for receiving a comparison voltage and a feedback signal being a function of the regulated voltage, and for proving a regulation signal according to a comparison between the comparison voltage and the feedback signal, the differential amplifier having a first supply terminal being coupled with a reference terminal for receiving a reference voltage and a second supply terminal, a regulation transistor having a control terminal for receiving the regulation signal, and a conduction first terminal and a conduction second terminal being coupled through loading means between the reference terminal and the first input terminal of the regulator, the second terminal of the regulation transistor being coupled with the output terminal of the regulator, wherein the second supply terminal of the differential amplifier is coupled with a second input terminal of the regulator for receiving a second voltage being lower than the first voltage in absolute value, and wherein the regulator further includes a set of auxiliary transistors being connected in series between the second terminal of the regulation transistor and the output terminal of the regulator, and control means for controlling the auxiliary transistors according to the regulated voltage.
摘要翻译：提供集成在半导体材料芯片中的电压调节器。所述调节器具有用于接收第一电压的第一输入端子和用于提供从所述第一电压获得的调节电压的输出端子，所述调节器包括：用于接收比较电压的差分放大器和作为所述第一电压的函数的反馈信号电压，并且为了根据比较电压和反馈信号之间的比较来证明调节信号，差分放大器具有与用于接收参考电压的参考端子耦合的第一电源端子和第二电源端子，调节晶体管具有用于接收所述调节信号的控制端子，以及通过所述参考端子和所述调节器的所述第一输入端子之间的负载装置耦合的导通第一端子和导通第二端子，所述调节晶体管的所述第二端子与所述输出端子的调节器，其中第二电源差分放大器的nal与调节器的第二输入端耦合，用于接收低于绝对值中的第一电压的第二电压，并且其中调节器还包括一组辅助晶体管，串联连接在第二端调节器的调节晶体管和输出端子，以及用于根据调节电压控制辅助晶体管的控制装置。

2. 发明申请

US20060291322A1 Circuit and method for retrieving data stored in semiconductor memory cells 有权
公开(公告)号：US20060291322A1
公开(公告)日：2006-12-28
申请号：US11444892
申请日：2006-05-31
申请人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
发明人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
IPC分类号： G11C8/00
CPC分类号： G11C11/5642 , G11C7/04 , G11C16/30
摘要： A circuit comprises at least one memory cell adapted to store data in terms of values of an electrical characteristic thereof, which exhibits a variability with temperature according to a first variation law; a voltage generator is provided for generating a voltage to be supplied to the at least one memory cell for retrieving the data stored therein, the voltage generator including first means adapted to cause the generated voltage take a value in a set of target values including at least one target value, corresponding to an operation to be performed on the memory cell. The voltage generator comprises second means for causing the value taken by the generated voltage vary with temperature according to a prescribed second variation law exploiting a compensation circuit element having said electrical characteristic.

3. 发明授权

US07863967B2 Multistage regulator for charge-pump boosted voltage applications 有权
标题翻译：用于电荷泵升压电压应用的多级调节器
公开(公告)号：US07863967B2
公开(公告)日：2011-01-04
申请号：US11460370
申请日：2006-07-27
申请人： Luca Crippa , Miriam Sangalli , Giancarlo Ragone , Rino Micheloni
发明人： Luca Crippa , Miriam Sangalli , Giancarlo Ragone , Rino Micheloni
IPC分类号： G05F1/46 , G11C16/30
CPC分类号： G11C5/145 , G11C16/30
摘要： A multistage circuit for regulating the charge voltage or the discharge current of a capacitance of an integrated device at a certain charge-pump generated boosted voltage is implemented without integrating high voltage transistor structures having a type of conductivity corresponding to the same sign of the boosted voltage (high-side transistors). The multistage circuit current includes at least a first stage, and an output stage in cascade to the first stage and coupled to the capacitance. The first stage is supplied at an unboosted power supply voltage of the integrated device, and the output stage is supplied at an unregulated charge-pump generated boosted voltage. The first stage includes a transistor having a type of conductivity corresponding to an opposite sign of the boosted voltage and of the power supply voltage. The drain of the output stage transistor is coupled to the boosted voltage either through a resistive pull-up or a voltage limiter.
摘要翻译：在一定的电荷泵产生的升压电压下，用于调节集成器件的电容的充电电压或放电电流的多级电路不需要集成具有对应于升压电压相同符号的电导率类型的高压晶体管结构，（高侧晶体管）。多级电路电流包括至少第一级和级联到第一级并耦合到电容的输出级。第一级是在集成器件的未升压的电源电压下提供的，并且输出级以未调节的电荷泵产生的升压电压供电。第一级包括具有对应于升压电压和电源电压的相反符号的导电类型的晶体管。输出级晶体管的漏极通过电阻上拉或电压限制器耦合到升压电压。

4. 发明授权

US07521983B2 High-voltage switch with low output ripple for non-volatile floating-gate memories 有权
标题翻译：非挥发性浮栅存储器具有低输出纹波的高压开关
公开(公告)号：US07521983B2
公开(公告)日：2009-04-21
申请号：US11437405
申请日：2006-05-19
申请人： Giancarlo Ragone , Luca Crippa , Miriam Sangalli , Rino Micheloni
发明人： Giancarlo Ragone , Luca Crippa , Miriam Sangalli , Rino Micheloni
IPC分类号： H03K17/687
CPC分类号： H02M3/073 , G11C5/145 , G11C8/08 , G11C16/08 , G11C16/12 , H02M2003/077 , H03K3/356104 , H03K17/063 , H03K17/6872 , H03K17/6874
摘要： A high-voltage switch has a high-voltage input terminal, receiving a high voltage, and an output terminal. A pass transistor, having a control terminal, is connected between the high-voltage input terminal and the output terminal. The output of a voltage-multiplying circuit of the charge-pump type is connected to the control terminal. The voltage-multiplying circuit is of a symmetrical type, has first and second charge-storage means, receiving a clock signal of a periodic type, and has a first circuit branch and a second circuit branch, which are symmetrical to one another and operate in phase opposition with respect to the clock signal.
摘要翻译：高压开关具有高电压输入端子，接收高电压和输出端子。具有控制端子的传输晶体管连接在高电压输入端子和输出端子之间。电荷泵型的倍压电路的输出端与控制端子连接。电压倍增电路是对称型的，具有第一和第二电荷存储装置，接收周期型的时钟信号，并且具有第一电路支路和第二电路支路，它们彼此对称并在相对于时钟信号的相位相反。

5. 发明授权

US07532061B2 Charge-pump type, voltage-boosting device with reduced ripple, in particular for non-volatile flash memories 有权
标题翻译：电荷泵型，具有减小的纹波的升压装置，特别是用于非易失性闪存
公开(公告)号：US07532061B2
公开(公告)日：2009-05-12
申请号：US11437268
申请日：2006-05-19
申请人： Giancarlo Ragone , Miriam Sangalli , Luca Crippa , Rino Micheloni
发明人： Giancarlo Ragone , Miriam Sangalli , Luca Crippa , Rino Micheloni
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： G11C5/145 , G11C16/30 , H02M3/073 , H02M2001/007
摘要： Voltage-boosting device having a supply input receiving a supply voltage, and a high-voltage output. The device is formed by a plurality of charge-pump stages series-connected between the supply input and the high-voltage output. Each charge-pump stage has a respective enabling input receiving an enabling signal. A control circuit formed by a plurality of comparators is connected to the high-voltage output and generates the enabling signals on the basis of the comparison between the voltage on the high-voltage output and a plurality of reference voltages, one for each comparator. The charge-pump stages are grouped into sets of stages, and the stages belonging to a same set receive a same enabling signal; thus, as many comparators as there are sets of stages are present.
摘要翻译：具有接收电源电压的电源输入和高压输出的升压装置。该装置由串联连接在电源输入端和高电压输出端之间的多个电荷泵级形成。每个电荷泵级具有接收使能信号的相应的使能输入。由多个比较器形成的控制电路连接到高电压输出，并且基于高电压输出上的电压与多个参考电压之间的比较产生使能信号，每个比较器一个。电荷泵级分组成一组级，属于同一组的级接收相同的使能信号; 因此，与存在一些阶段的比较器一样多。

6. 发明申请

US20080054864A1 VOLTAGE REGULATOR OR NON-VOLATILE MEMORIES IMPLEMENTED WITH LOW-VOLTAGE TRANSISTORS 有权
标题翻译：电压调节器或低电压晶体管实现的非易失性存储器
公开(公告)号：US20080054864A1
公开(公告)日：2008-03-06
申请号：US11844470
申请日：2007-08-24
申请人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Giovanni Campardo , Rino Micheloni
发明人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Giovanni Campardo , Rino Micheloni
IPC分类号： G05F1/00
CPC分类号： G11C5/147 , G05F1/565 , G11C16/30
摘要： A voltage regulator integrated in a chip of semiconductor material is provided. The regulator has a first input terminal for receiving a first voltage and an output terminal for providing a regulated voltage being obtained from the first voltage, the regulator including: a differential amplifier for receiving a comparison voltage and a feedback signal being a function of the regulated voltage, and for proving a regulation signal according to a comparison between the comparison voltage and the feedback signal, the differential amplifier having a first supply terminal being coupled with a reference terminal for receiving a reference voltage and a second supply terminal, a regulation transistor having a control terminal for receiving the regulation signal, and a conduction first terminal and a conduction second terminal being coupled through loading means between the reference terminal and the first input terminal of the regulator, the second terminal of the regulation transistor being coupled with the output terminal of the regulator, wherein the second supply terminal of the differential amplifier is coupled with a second input terminal of the regulator for receiving a second voltage being lower than the first voltage in absolute value, and wherein the regulator further includes a set of auxiliary transistors being connected in series between the second terminal of the regulation transistor and the output terminal of the regulator, and control means for controlling the auxiliary transistors according to the regulated voltage.
摘要翻译：提供集成在半导体材料芯片中的电压调节器。所述调节器具有用于接收第一电压的第一输入端子和用于提供从所述第一电压获得的调节电压的输出端子，所述调节器包括：用于接收比较电压的差分放大器和作为所述第一电压的函数的反馈信号电压，并且为了根据比较电压和反馈信号之间的比较来证明调节信号，差分放大器具有与用于接收参考电压的参考端子耦合的第一电源端子和第二电源端子，调节晶体管具有用于接收所述调节信号的控制端子，以及通过所述参考端子和所述调节器的所述第一输入端子之间的负载装置耦合的导通第一端子和导通第二端子，所述调节晶体管的所述第二端子与所述输出端子的调节器，其中第二电源差分放大器的nal与调节器的第二输入端耦合，用于接收低于绝对值中的第一电压的第二电压，并且其中调节器还包括一组辅助晶体管，串联连接在第二端调节器的调节晶体管和输出端子，以及用于根据调节电压控制辅助晶体管的控制装置。

7. 发明申请

US20070069801A1 Charge-pump type, voltage-boosting device with reduced ripple, in particular for non-volatile flash memories 有权
标题翻译：电荷泵型，具有减小的纹波的升压装置，特别是用于非易失性闪存
公开(公告)号：US20070069801A1
公开(公告)日：2007-03-29
申请号：US11437268
申请日：2006-05-19
申请人： Giancarlo Ragone , Miriam Sangalli , Luca Crippa , Rino Micheloni
发明人： Giancarlo Ragone , Miriam Sangalli , Luca Crippa , Rino Micheloni
IPC分类号： G05F1/10
CPC分类号： G11C5/145 , G11C16/30 , H02M3/073 , H02M2001/007
摘要： Voltage-boosting device having a supply input receiving a supply voltage, and a high-voltage output. The device is formed by a plurality of charge-pump stages series-connected between the supply input and the high-voltage output. Each charge-pump stage has a respective enabling input receiving an enabling signal. A control circuit formed by a plurality of comparators is connected to the high-voltage output and generates the enabling signals on the basis of the comparison between the voltage on the high-voltage output and a plurality of reference voltages, one for each comparator. The charge-pump stages are grouped into sets of stages, and the stages belonging to a same set receive a same enabling signal; thus, as many comparators as there are sets of stages are present.
摘要翻译：具有接收电源电压的电源输入和高压输出的升压装置。该装置由串联连接在电源输入端和高电压输出端之间的多个电荷泵级形成。每个电荷泵级具有接收使能信号的相应的使能输入。由多个比较器形成的控制电路连接到高电压输出，并且基于高电压输出上的电压与多个参考电压之间的比较产生使能信号，每个比较器一个。电荷泵级分组成一组级，属于同一组的级接收相同的使能信号; 因此，与存在一些阶段的比较器一样多。

8. 发明授权

US07889586B2 Circuit and method for retrieving data stored in semiconductor memory cells 有权
标题翻译：用于检索存储在半导体存储单元中的数据的电路和方法
公开(公告)号：US07889586B2
公开(公告)日：2011-02-15
申请号：US12248843
申请日：2008-10-09
申请人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
发明人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
IPC分类号： G11C7/04
CPC分类号： G11C11/5642 , G11C7/04 , G11C16/30
摘要： A circuit comprises at least one memory cell adapted to store data in terms of values of an electrical characteristic thereof, which exhibits a variability with temperature according to a first variation law; a voltage generator is provided for generating a voltage to be supplied to the at least one memory cell for retrieving the data stored therein, the voltage generator including first means adapted to cause the generated voltage take a value in a set of target values including at least one target value, corresponding to an operation to be performed on the memory cell. The voltage generator comprises second means for causing the value taken by the generated voltage vary with temperature according to a prescribed second variation law exploiting a compensation circuit element having said electrical characteristic.
摘要翻译：电路包括至少一个存储单元，适于根据其电特性的值存储数据，其根据第一变化规律表现出与温度的变化性; 提供电压发生器，用于产生要提供给所述至少一个存储单元的电压以检索存储在其中的数据，所述电压发生器包括适于使所产生的电压取值至少包括至少一组目标值的值的第一装置一个目标值，对应于要在存储器单元上执行的操作。电压发生器包括第二装置，用于使得所产生的电压所采取的值根据规定的第二变化规律随温度变化，利用具有所述电特性的补偿电路元件。

9. 发明申请

US20070164811A1 MULTISTAGE REGULATOR FOR CHARGE-PUMP BOOSTED VOLTAGE APPLICATIONS, NOT REQUIRING INTEGRATION OF DEDICATED HIGH VOLTAGE HIGH SIDE TRANSISTORS 有权
标题翻译：用于充电泵升压电压应用的多级稳压器，不需要集成高压高压侧晶体管
公开(公告)号：US20070164811A1
公开(公告)日：2007-07-19
申请号：US11460370
申请日：2006-07-27
申请人： Luca Crippa , Miriam Sangalli , Giancarlo Ragone , Rino Micheloni
发明人： Luca Crippa , Miriam Sangalli , Giancarlo Ragone , Rino Micheloni
IPC分类号： G05F1/10
CPC分类号： G11C5/145 , G11C16/30
摘要： A multistage circuit for regulating the charge voltage or the discharge current of a capacitance of an integrated device at a certain charge-pump generated boosted voltage is implemented without integrating high voltage transistor structures having a type of conductivity corresponding to the same sign of the boosted voltage (high-side transistors). The multistage circuit current includes at least a first stage, and an output stage in cascade to the first stage and coupled to the capacitance. The first stage is supplied at an unboosted power supply voltage of the integrated device, and the output stage is supplied at an unregulated charge-pump generated boosted voltage. The first stage includes a transistor having a type of conductivity corresponding to an opposite sign of the boosted voltage and of the power supply voltage. The drain of the output stage transistor is coupled to the boosted voltage either through a resistive pull-up or a voltage limiter.
摘要翻译：在一定的电荷泵产生的升压电压下，用于调节集成器件的电容的充电电压或放电电流的多级电路被实现，而不需要集成具有对应于升压电压相同符号的导电类型的高压晶体管结构（高侧晶体管）。多级电路电流包括至少第一级和级联到第一级并耦合到电容的输出级。第一级是在集成器件的未升压的电源电压下提供的，并且输出级以未调节的电荷泵产生的升压电压供电。第一级包括具有对应于升压电压和电源电压的相反符号的导电类型的晶体管。输出级晶体管的漏极通过电阻上拉或电压限制器耦合到升压电压。

10. 发明申请

US20090262593A1 CIRCUIT AND METHOD FOR RETRIEVING DATA STORED IN SEMICONDUCTOR MEMORY CELLS 有权
标题翻译：用于检测存储在半导体存储器单元中的数据的电路和方法
公开(公告)号：US20090262593A1
公开(公告)日：2009-10-22
申请号：US12248843
申请日：2008-10-09
申请人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
发明人： Luca Crippa , Giancarlo Ragone , Miriam Sangalli , Rino Micheloni
IPC分类号： G11C7/04 , G11C16/06 , G11C5/14
CPC分类号： G11C11/5642 , G11C7/04 , G11C16/30
摘要： A circuit comprises at least one memory cell adapted to store data in terms of values of an electrical characteristic thereof, which exhibits a variability with temperature according to a first variation law; a voltage generator is provided for generating a voltage to be supplied to the at least one memory cell for retrieving the data stored therein, the voltage generator including first means adapted to cause the generated voltage take a value in a set of target values including at least one target value, corresponding to an operation to be performed on the memory cell. The voltage generator comprises second means for causing the value taken by the generated voltage vary with temperature according to a prescribed second variation law exploiting a compensation circuit element having said electrical characteristic.
摘要翻译：电路包括至少一个存储单元，适于根据其电特性的值存储数据，其根据第一变化规律表现出与温度的变化性; 提供电压发生器，用于产生要提供给所述至少一个存储单元的电压以检索存储在其中的数据，所述电压发生器包括适于使所产生的电压取值至少包括至少一组目标值的值的第一装置一个目标值，对应于要在存储器单元上执行的操作。电压发生器包括第二装置，用于使得所产生的电压所采取的值根据规定的第二变化规律随温度变化，利用具有所述电特性的补偿电路元件。

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