公开(公告)号：EP1052758B1

公开(公告)日：2004-10-13

申请号：EP99830285.5

申请日：1999-05-10

Applicant: STMicroelectronics S.r.l.

Inventor： D'Arrigo, Angelo ,  Capici, Salvatore ,  Marino, Filippo ,  Pulvirenti, Francesco

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  H02M3/156 ,  H02M2001/0009

公开(公告)号：EP1324308A1

公开(公告)日：2003-07-02

申请号：EP01830809.8

申请日：2001-12-27

Applicant: STMicroelectronics S.r.l.

Inventor： Pulvirenti, Francesco

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G2330/021

Abstract: The present invention refers to a generation system for driving voltages of the rows and of the columns of a liquid crystal display.
In an embodiment the generation system for driving voltages of the rows and of the columns of a liquid crystal display comprises: a first supply voltage (V1cd); a second supply voltage (GND); said first (V1cd) and second (GND) supply voltages supply a voltage generator circuit that provides at its output a first (V2), a second (V3), a third (V4) and a fourth (V5) voltage having respectively four prefixed values; characterized by further comprising at least a voltage generator (22, 23, 32, 42, 43, 52) that provides a first intermediary voltage (V3bis, V3, V4bis, V4) having a first intermediary prefixed value of intermediary value with respect to said first (V1cd) and second (GND) supply voltages, said first intermediary voltage (V3bis, V3, V4bis, V4) supplies part of said voltage generator circuit.

Abstract translation: 本发明涉及用于驱动液晶显示器的列和列的电压的发生系统。 在一个实施例中，用于驱动液晶显示器的列和列的电压的发生系统包括：第一电源电压（V1cd）; 第二电源电压（GND）; 所述第一（V1cd）和第二（GND）电源提供一个电压发生器电路，该电压发生器电路在其输出端提供第一（V2），第二（V3），第三（V4）和第四（V5） 值; 其特征在于还包括至少一个电压发生器（22,23,32,42,43,52），所述电压发生器提供第一中间电压（V3bis，V3，V4bis，V4），所述第一中间电压相对于所述电压发生器具有中间值的第一中间预定值 第一（V1cd）和第二（GND）电源电压，所述第一中间电压（V3bis，V3，V4bis，V4）提供所述电压发生器电路的一部分。

公开(公告)号：EP0782235B1

公开(公告)日：2001-11-14

申请号：EP95830550.0

申请日：1995-12-29

Applicant: STMicroelectronics S.r.l. ,  CO.RI.M.ME. CONSORZIO PER LA RICERCA SULLA MICROELETTRONICA NEL MEZZOGIORNO

Inventor： Pulvirenti, Francesco ,  Bontempo, Gregorio ,  Gariboldi, Roberto

IPC: H02H1/00 ,  H03K17/082

CPC classification number: H03K17/0822 ,  H03K2017/0806 ,  H03K2217/0063 ,  H03K2217/0072

公开(公告)号：EP1052758A1

公开(公告)日：2000-11-15

申请号：EP99830285.5

申请日：1999-05-10

Applicant: STMicroelectronics S.r.l.

Inventor： D'Arrigo, Angelo ,  Capici, Salvatore ,  Marino, Filippo ,  Pulvirenti, Francesco

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  H02M3/156 ,  H02M2001/0009

Abstract: The frequency translator (72) is usable in a switching DC-DC converter of the type operating as a voltage regulator and as a battery charger. The frequency translator (72) receives at inputs a division voltage (VFB) proportional to a present value of the output voltage (VOUT) of the DC-DC converter (70), a reference voltage (VREF) correlated to a nominal value of the output voltage (VOUT), and a limiting signal (VL) indicative of a normal operation or of current limitation operation of the DC-DC converter (70), and supplies at an output (72u) a bias current (IBIAS) which is supplied to an input of an oscillator (32) supplying at an output a comparison signal (VC) presenting a periodic pattern with a frequency which is correlated to the bias current (IBIAS). In particular, the frequency translator (72) operates in a way such as to regulate a frequency translation of the comparison signal (VC) as a function of the difference between the division voltage (VFB) and the reference voltage (VREF) only when the DC-DC converter (70) is operating in the current limitation condition.

Abstract translation: 频率变换器（72）是在作为电压调节器和作为电池充电器操作的类型的开关型DC-DC转换器使用。 频率转换器（72）接收在输入的分压电压（VFB）正比于相关的一个标称值的输出电压的DC-DC转换器（70），参考电压（VREF）的（VOUT）的当前值 输出电压（VOUT）和一个限制信号（VL）表示在上输出（72U）的偏置电流（I BIAS）正常操作或DC-DC转换器（70）的电流限制手术，和用品的所有被提供 对在以输出供给振荡器（32）的输入呈现的周期性图案的频率的所有其相关于偏置电流（I BIAS）的比较信号（VC）。 特别地，所述频率变换器（72）进行操作的方式：例如，以调节所述比较信号（VC）作为分割电压（VFB）和参考电压（VREF）之间的差的函数的一个频率转换只有当 DC-DC转换器（70）在电流限制的条件下操作。

公开(公告)号：EP1049256A1

公开(公告)日：2000-11-02

申请号：EP99830260.8

申请日：1999-04-30

Applicant: STMicroelectronics S.r.l.

Inventor： Pulvirenti, Francesco

IPC: H03K3/354 ,  H03K3/03

CPC classification number: H03K3/354 ,  H03K3/03

Abstract: A low supply voltage oscillator circuit (4) of the type which comprises at least one capacitor (C1,C2) to be controlled, connected between first (VDD) and second (GND) voltage references, and a circuit for charging and discharging the capacitor to be controlled.
The oscillator circuit (4) of the invention comprises at least first (A) and second (B) stages having symmetrical structures in a mirror-image configuration and being connected between the first voltage reference (VDD) and the second voltage reference (GND) and connected together through a memory element (FF) and respective primary switches (N3,N4) for alternately charging in a controlled fashion said capacitors (C1,C2).

Abstract translation: 一种低电源电压振荡器电路（4），包括至少一个待控制的电容器（C1，C2），连接在第一（VDD）和第二（GND）电压基准之间，以及用于对电容器充电和放电的电路 被控制。 本发明的振荡器电路（4）至少包括第一（A）和第二（B）级，其具有镜像配置中的对称结构，并连接在第一参考电压（VDD）和第二参考电压（GND）之间。 并且通过存储元件（FF）和相应的初级开关（N3，N4）连接在一起，用于以受控的方式交替地充电所述电容器（C1，C2）。

公开(公告)号：EP1049229A1

公开(公告)日：2000-11-02

申请号：EP99830257.4

申请日：1999-04-29

Applicant: STMicroelectronics S.r.l.

Inventor： Pappalardo, Salvatore ,  Pulvirenti, Francesco ,  Marino, Filippo

IPC: H02J7/00

CPC classification number: H02M3/156 ,  H02J7/0052 ,  H02J2007/0059 ,  Y10S323/901

Abstract: The DC-DC converter (1') comprises a current error amplifier (32') and a voltage error amplifier (42') connected in parallel to control the charging of the battery (18) and a gradual turning off circuit (44', 60) for turning off gradually the current error amplifier (32') in a battery charging end phase. In this way, the DC-DC converter is able to supply to the battery (18) a battery charging current that remains constant up until the battery full charge voltage is reached.

Abstract translation: 的DC-DC转换器（1“）包括电流误差放大器（32”）和一个电压误差放大器（42“）并联连接，以控制所述电池（18）和一个逐渐关断电路的充电（44” 60）一种用于在电池渐渐关闭电流误差放大器（32“）的充电结束阶段。 以这种方式，在DC-DC转换器能够提供给电池（18）的电池充电电流保持恒定，直到达到电池满充电电压。

公开(公告)号：EP0899643A1

公开(公告)日：1999-03-03

申请号：EP97830434.3

申请日：1997-08-29

Applicant: STMicroelectronics S.r.l.

Inventor： Capici, Salvatore Vincenzo ,  Milazzo, Patrizia ,  Pulvirenti, Francesco

IPC: G05F1/565

CPC classification number: G05F1/565

Abstract: A linear type of voltage regulator, having an input terminal (VBAT) adapted to receive a supply voltage thereon, and an output terminal (VOUT) adapted to deliver a regulated output voltage, comprises a power transistor (M1) and a driving circuit therefor; the driving circuit basically comprises an operational amplifier (OP) having a differential input stage biased by a bias current (Iop) which varies proportionally with the output current (Iload) of the regulator.

Abstract translation: 具有适于接收电源电压的输入端子（VBAT）的线性类型的电压调节器和适于传递稳定输出电压的输出端子（VOUT）包括功率晶体管（M1）及其驱动电路; 驱动电路基本上包括具有由偏置电流（Iop）偏置的差分输入级的运算放大器（OP），偏置电流（Iop）与调节器的输出电流（Iload）成比例地变化。

公开(公告)号：EP0892435A1

公开(公告)日：1999-01-20

申请号：EP97830347.7

申请日：1997-07-14

Applicant: STMicroelectronics S.r.l.

Inventor： Pulvirenti, Francesco

IPC: H01L27/02

CPC classification number: H01L29/7815 ,  H01L27/0211 ,  H01L27/07 ,  H01L29/0696 ,  H01L29/7395 ,  H01L29/7809

Abstract: The present invention relates to semiconductor integrated transistors comprising a conduction section (CE,ME) and a sense section (SE) for the current flowing through the conduction section (CE,ME), both sections being located within a region (RG).
To ensure that sensing is accurate and takes into account that the surface of the power transistor reach in operation a non-uniform temperature, the conduction section (CE,ME) and sense section (SE) are located in such a manner that, in operation, their temperature distributions are substantially equal.

Abstract translation: 本发明涉及包含用于流过导电部分（CE，ME）的电流的导电部分（CE，ME）和感测部分（SE）的半导体集成晶体管，两个部分位于区域（RG）内。 为了确保感测是准确的并且考虑到功率晶体管的表面在操作中达到不均匀的温度，则传导部分（CE，ME）和感测部分（SE）以如下方式定位：在操作中 ，它们的温度分布基本相等。