公开(公告)号：EP1233319A1

公开(公告)日：2002-08-21

申请号：EP01301317.2

申请日：2001-02-15

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: G05F3/26

CPC classification number: G05F3/265 ,  G05F3/267

Abstract: A current source circuit is described for generating control current. The circuit is capable of generating a very accurate reference current and in particular dealing with the problem which can arise from injected noise. A feedback loop is implemented to reject the charge injection noise.

Abstract translation: 描述了用于产生控制电流的电流源电路。 该电路能够产生非常准确的参考电流，特别是处理由注入噪声引起的问题。 一个反馈回路被用来抑制电荷注入噪声。

公开(公告)号：EP1388776B1

公开(公告)日：2007-06-13

申请号：EP02255483.6

申请日：2002-08-06

Applicant: STMicroelectronics Limited

Inventor： Rashid, Tahir ,  Darzy, Saul

IPC: G05F3/26

CPC classification number: G05F3/265

公开(公告)号：EP1353440A1

公开(公告)日：2003-10-15

申请号：EP02252623.0

申请日：2002-04-12

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: H03F3/30

CPC classification number: H03F3/3067

Abstract: This invention relates to a circuit used in the output stage of an operational amplifier which allows a rail to rail swing of the output voltage while consuming low quiescent power. The circuit comprising first (Q1) and second (Q2) control elements each having a controllable path and a control node. The circuit further comprises a third control element (Q3) having a controllable path connected between said control nodes of said first and second control elements via a resisted path (R1,R2). A voltage indicative of a signal input to amplifier is received by a node on the resistive path (R1,R2), such that current flow through the controllable path of said first control element (Q1) and said third element (Q3) changes in response to a change in the voltage at said node; and such that current flow through said controllable path of said second element (Q2) changes independence on the current flow through the controllable path of said third control elements (Q3), whereby as one of the first and second control elements (Q1,Q2) is turned on, the other is held off.

Abstract translation: 本发明涉及在运算放大器的输出级，其允许轨与输出电压的轨摆动，同时消耗低静态功率使用的电路。 该电路包括第一开关（Q1）和第二（Q2）的控制元件的每个具有可控路径和控制节点。 该电路还包括具有通过抵制路径（R1，R2），其连接所述第一和第二控制元件的所述控制节点之间的可控路径的第三控制元件（Q3）。 表示输入到放大器的信号的电压通过电阻路径（R1，R2）上的一个节点接收到的，检测通过所述第一控制元件（Q1）的所述可控路径没有电流流动，并且所述响应第三元件（Q3）的变化 以在节点。所述的电压变化; 并且这样做通过的所述第二元件（Q2）的变化对电流流过所述第三控制元件（Q3）的可控路径，独立所述可控路径的电流流动，由此作为第一和第二控制元件中的一个（Q1，Q2） 开启时，另一种是挡住。

公开(公告)号：EP1126611A1

公开(公告)日：2001-08-22

申请号：EP01300962.6

申请日：2001-02-02

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: H03K19/00 ,  H03K19/017 ,  H03K19/003

CPC classification number: H03K19/00361 ,  H03K19/0013 ,  H03K19/00315

Abstract: A circuit for providing a control signal for a load includes a first switch having a first and a second state, a second switch having a first and a second state coupled to said first switch, a load connected to said first and second switches, protection circuitry for protecting said load from excessive voltage and circuitry for switching said first switch. The circuit is arranged so that when the first switch is in the first state current flows from the load to the first switch and the switching circuitry is arranged to switch the first switch to the second state when the voltage across the load reaches a predetermined value.

Abstract translation: 用于为负载提供控制信号的电路包括具有第一和第二状态的第一开关，具有耦合到所述第一开关的第一和第二状态的第二开关，连接到所述第一和第二开关的负载，保护电路 用于保护所述负载免受过度电压和用于切换所述第一开关的电路。 电路布置成使得当第一开关处于第一状态时，电流从负载流向第一开关，并且开关电路被布置成当跨过负载的电压达到预定值时将第一开关切换到第二状态。

公开(公告)号：EP1353440B1

公开(公告)日：2009-12-16

申请号：EP02252623.0

申请日：2002-04-12

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: H03F3/30

CPC classification number: H03F3/3067

公开(公告)号：EP1388776A1

公开(公告)日：2004-02-11

申请号：EP02255483.6

申请日：2002-08-06

Applicant: STMicroelectronics Limited

Inventor： Rashid, Tahir ,  Darzy, Saul

IPC: G05F3/26

CPC classification number: G05F3/265

Abstract: This invention relates to a current source circuit which is adapted to generate a current proportional to absolute temperature (PTAT) and which is able to operate at low supply voltages. The current source circuit includes two current mirrors (Q 1 ,Q 2 ;Q 3 ,Q 4 ), a start-up circuit (QS1,QS2,QS,Rs) and an output transisitor (Q o ). The current of the start-up circuit flows through a resistor (R c ), which is part of one of the current mirrors, so as to provide a feedback for compensating for the variations in the supply voltage. An improved power supply rejection ratio (PSRR) is obtained.

Abstract translation: 本发明涉及一种电流源电路，其适于产生与绝对温度（PTAT）成比例的电流，并能够在低电源电压下工作。 电流源电路包括两个电流镜（Q1，Q2; Q3，Q4），启动电路（QS1，QS2，QS，Rs）和输出截止器（Qo）。 启动电路的电流通过作为电流镜之一的电阻器（Rc）流动，以便提供用于补偿电源电压变化的反馈。 获得了改进的电源抑制比（PSRR）。

公开(公告)号：EP1126611B1

公开(公告)日：2008-08-06

申请号：EP01300962.6

申请日：2001-02-02

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: H03K19/00 ,  H03K19/017 ,  H03K19/003

CPC classification number: H03K19/00361 ,  H03K19/0013 ,  H03K19/00315

公开(公告)号：EP1882997A1

公开(公告)日：2008-01-30

申请号：EP06253928.3

申请日：2006-07-27

Applicant: STMicroelectronics Limited

Inventor： Darzy, Saul

IPC: G05F1/569 ,  G05F1/46 ,  H02J7/00

CPC classification number: H02J7/0029

Abstract: A battery charger (100) is provided which has a power output (30) to charge a battery. The battery charger (100) comprises a power input (10) and a means (140) for determining a temperature at the battery charger (100). The battery charger (100) then further comprises a controller (110), which is adapted to vary the power output among a plurality of non-zero power levels, in dependence upon the difference between the determined temperature (25) and a reference temperature (130).

Abstract translation: 提供具有对电池充电的功率输出（30）的电池充电器（100）。 电池充电器（100）包括电源输入（10）和用于确定电池充电器（100）的温度的装置（140）。 电池充电器（100）然后还包括控制器（110），其适于根据所确定的温度（25）和参考温度（25）之间的差异来改变多个非零功率电平之间的功率输出 130）。

公开(公告)号：EP1681763A1

公开(公告)日：2006-07-19

申请号：EP04257695.9

申请日：2004-12-10

Applicant: STMicroelectronics Limited ,  STMICROELECTRONICS SA

Inventor： Darzy, Saul ,  Garnier, Jean Francois

IPC: H02P7/29 ,  H03K17/18

CPC classification number: H02P7/29

Abstract: There is provided a controller for a DC motor drive transistor which controls a parameter of a motor, the transistor being of PNP or NPN type, and the controller comprising a detection circuit, adapted to determine whether the DC motor drive transistor is of the PNP or NPN type and a driver circuit, adapted to sink current from the PNP transistor if it is determined that a PNP transistor is present, or source current into the NPN transistor if it is determined that an NPN transistor is present.

Abstract translation: 提供了一种用于控制电动机参数的直流电动机驱动晶体管的控制器，该晶体管是PNP或NPN型，并且该控制器包括一个检测电路，适用于确定直流电动机驱动晶体管是否为PNP， 如果确定存在PNP晶体管，则NPN型和驱动电路适于从PNP晶体管吸收电流，或者如果确定存在NPN晶体管，则该源极电流流入NPN晶体管。