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1. 发明公开

EP0794477A1 A voltage generation circuit 失效
标题翻译： Schaltung zur Spannungserzeugung
公开(公告)号：EP0794477A1
公开(公告)日：1997-09-10
申请号：EP97106656.8
申请日：1994-07-04
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Dutt, Saibul , Mohan, Muni
IPC分类号： G05F1/46 , G05F3/16 , H03K5/08 , H02M1/08
CPC分类号： G05F3/247 , G05F3/24 , H02M1/10
摘要： A circuit is provided for generating reference voltages which are at constant values (V p ) with respect to a varying DC voltage (V DC ). A fixed reference voltage (V BG ) is generated which is fixed with respect to the ground voltage (V SS ). Fractions (Vi) of this fixed reference voltage are added and subtracted to the varying DC voltage ( VDC ) by means of differential amplifiers (A3;A4), in order to produce the desired reference voltages respective to the varying DC voltage (V DC ).
摘要翻译：提供电路，用于产生相对于变化的直流电压（VDC）处于恒定值（Vp）的参考电压。产生相对于接地电压（VSS）固定的固定参考电压（VBG）。通过差分放大器（A3; A4）将该固定参考电压的分数（Vi）相加并减去变化的直流电压（VDC），以产生相应于变化的直流电压（VDC）的所需参考电压。

2. 发明公开

EP0693749A1 A bidirectional load current sense circuit for a H-bridge 失效
标题翻译： BirolktionaleStromabfühlschaltungfüreine H-Brücke
公开(公告)号：EP0693749A1
公开(公告)日：1996-01-24
申请号：EP94410051.0
申请日：1994-07-19
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Elango, PakriSwami
IPC分类号： G11B5/55
CPC分类号： G11B5/5526
摘要： The present invention relates to a current sense device for a load arranged in a diagonal of a H-bridge comprising MOS transistors (M1, M2, M3, M4) and operating in class AB, characterized in that it comprises first means, independent from the H-bridge, for measuring the current (I) flowing in the load (1). A current-voltage converter (3) for converting the current measured by said first means into a voltage (Vout) proportional to said current, this voltage being applied to a sense amplifier that determines the transconductance gain of a control amplifier of the transistors of the H-bridge.
摘要翻译：本发明涉及一种用于负载布置在包括MOS晶体管（M1，M2，M3，M4）并且在AB类中操作的H桥的对角线中的负载的电流感测装置，其特征在于，它包括第一装置，独立于 H桥，用于测量在负载（1）中流动的电流（I）。一种用于将由所述第一装置测量的电流转换成与所述电流成比例的电压（Vout）的电流 - 电压转换器（3），所述电压被施加到读出放大器，所述读出放大器确定所述晶体管的控制放大器的跨导增益 H桥。

3. 发明公开

EP0666636A3 Missing cycle recovery scheme 失效
标题翻译：缺少循环恢复方案
公开(公告)号：EP0666636A3
公开(公告)日：1995-09-13
申请号：EP95300265.6
申请日：1995-01-17
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Mohan, Muni, SGS-Thomson Microelectron. Pte Ltd.
IPC分类号： H02M1/10
CPC分类号： H02M1/10
摘要： The current invention provides circuitry for use in an integrated circuit controlled voltage doubler/bridge circuit such that during any period wherein a lack of AC supply voltage is detected by the circuitry and following a period of AC input voltage within a lower defined range of values, repeated triac firing pulses are provided such that the AC supply will be rectified and doubled as soon as such a supply returns, whether the supply returns with the same or opposite polarity to that which it had, just before being interrupted.
摘要翻译：本发明提供用于集成电路控制的倍压器/桥接电路中的电路，使得在电路检测到缺少AC电源电压并且在一个较低限定值范围内的AC输入电压周期之后的任何周期期间，提供重复的三端双向可控硅触发脉冲，使得交流电源将在此电源恢复时立即被整流并加倍，无论电源是否在其中断之前以相同或相反的极性返回。

4. 发明公开

EP0666636A2 Missing cycle recovery scheme 失效
标题翻译： Fehlendzyklus-Widerherstellungsschema。
公开(公告)号：EP0666636A2
公开(公告)日：1995-08-09
申请号：EP95300265.6
申请日：1995-01-17
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Mohan, Muni, SGS-Thomson Microelectron. Pte Ltd.
IPC分类号： H02M1/10
CPC分类号： H02M1/10
摘要： The current invention provides circuitry for use in an integrated circuit controlled voltage doubler/bridge circuit such that during any period wherein a lack of AC supply voltage is detected by the circuitry and following a period of AC input voltage within a lower defined range of values, repeated triac firing pulses are provided such that the AC supply will be rectified and doubled as soon as such a supply returns, whether the supply returns with the same or opposite polarity to that which it had, just before being interrupted.
摘要翻译：本发明提供了一种用于集成电路控制的倍压器/桥式电路的电路，使得在电路中检测到缺少AC电源电压并且在一定数值范围内的AC输入电压之后，提供重复的三端双向可控硅开关脉冲，使得在电源返回之后，AC电源将被纠正和加倍，无论在中断之前，电源是否以与其具有的相同或相反的极性返回。

5. 发明公开

EP0633652A3 A DC voltage supply circuit 失效
标题翻译： DC电源电路。
公开(公告)号：EP0633652A3
公开(公告)日：1995-04-19
申请号：EP94304903.1
申请日：1994-07-04
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Dutt, Saibul , Mohan, Muni
IPC分类号： H02M7/10 , H02M1/10 , G05F3/24
CPC分类号： G05F3/247 , G05F3/24 , H02M1/10
摘要： A circuit is provided for rectifying an AC input voltage to provide a substantially constant DC output voltage. A composite input voltage is derived from the AC input voltage, which is composed of a scaled input AC voltage shifted by a selected DC bias voltage such that the entire range of such input signal voltages is contained within the supply voltages of detection circuitry which controls the rectifier circuitry. The detection is thus carried out during both the upper and lower excursions of the input AC voltage.

6. 发明公开

EP0623986A1 Battery charger 失效
标题翻译： Batterieladegerät。
公开(公告)号：EP0623986A1
公开(公告)日：1994-11-09
申请号：EP94300655.1
申请日：1994-01-28
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Yuen, Tang Kong
IPC分类号： H02J7/10 , H02J7/00
CPC分类号： H02J1/10 , H02J7/0068 , H02J7/0081 , H02J9/061
摘要： A battery charger is described which can be used with either nickel cadmium NICD or nickel metal hydride NIMH batteries and which in particular provides end point detection capable of accommodating the needs of either type of battery.
摘要翻译：描述了可以与镍镉NICD或镍金属氢化物NIMH电池一起使用的电池充电器，并且其特别提供能够满足任一类型的电池的需要的端点检测。

7. 发明公开

EP0623985A1 Power Sharing detector 失效
标题翻译： Leistungsaufteilungsdetektor。
公开(公告)号：EP0623985A1
公开(公告)日：1994-11-09
申请号：EP94300654.4
申请日：1994-01-28
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Yuen, Tang Kong
IPC分类号： H02J7/10 , H02J7/00
CPC分类号： H02J7/0068 , H02J1/10 , H02J7/0081 , H02J9/061 , Y10S320/10 , Y10S320/11 , Y10T307/469
摘要： A technique for detecting power demand to provide efficient power sharing is described. The technique is particularly but not exclusively concerned with providing a power sharing detector for use in a portable computer which requires battery charging to be done concurrently with computer usage, and preferably provides three different rates of charging.
摘要翻译：描述了一种用于检测功率需求以提供有效的功率共享的技术。该技术特别但不排他地涉及提供一种在便携式计算机中使用的功率共享检测器，其需要与计算机使用同时进行电池充电，并且优选地提供三种不同的充电速率。

8. 发明公开

EP0603436A1 Parallel phone detection circuit 失效
标题翻译： Schaltung zur Detektion einesParallelfernsprechgerät。
公开(公告)号：EP0603436A1
公开(公告)日：1994-06-29
申请号：EP92311665.1
申请日：1992-12-21
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Jo, Sung Jin
IPC分类号： H04M3/00 , H04M3/22 , H04M1/00
CPC分类号： H04M1/80 , H04M3/2272 , H04M3/4283
摘要： A parallel phone detection circuit is described, the function of which is to enable a phone call to be transferred from a first telephone set to a second telephone set. The detection circuit maintains the first telephone set connected to the telephone line until the handset of the second telephone set has been taken off-hook, and then disconnects the first telephone set.
The circuit operates by detecting the line current from the telephone line and produces the reference value for comparison purposes related to that line current.
摘要翻译：描述并行电话检测电路，其功能是使得电话呼叫能够从第一电话机传送到第二电话机。检测电路维持连接到电话线的第一电话机，直到第二电话机的手机摘机，然后断开第一电话机。该电路通过检测来自电话线的线路电流进行工作，并产生与该线路电流相关的比较目的的参考值。

9. 发明公开

EP0357365A2 An audio amplifier 失效
标题翻译： Tonfrequenzverstärker。
公开(公告)号：EP0357365A2
公开(公告)日：1990-03-07
申请号：EP89308703.1
申请日：1989-08-29
申请人： SGS- THOMSON MICROELECTRONICS (PTE) LTD.
发明人： Heng, Loh Gee
IPC分类号： H03F3/183 , H03F1/26 , H03F3/343
CPC分类号： H03F1/26 , H03F3/183
摘要： An audio amplifier comprises a first current mirror (Q12, Q13, R10, R11) having an input coupled to an output of a cascade differential pair (Q10, Q11) and an output coupled to an output of a first constant current source (Q14, Q15, R12), and a second constant current source (Q16, Q18, CC10) supplying the voltage reference (Q15) of the first constant current source. Hitherto a resistor has been used instead of the second constant current source to reduce noise. However, using a resistor results in the amplifier having a relatively low power supply rejection ratio, thereby degrading the performance of the amplifier. Accordingly the present invention uses a second constant current source and reduces noise generated thereby using the first constant current source.
摘要翻译：音频放大器包括具有耦合到级联差分对（Q10，Q11）的输出的输入的第一电流镜（Q12，Q13，R10，R11）和耦合到第一恒定电流源（Q14， Q15，R12）和提供第一恒流源的电压基准（Q15）的第二恒流源（Q16，Q18，CC10）。迄今为止，已经使用电阻器来代替第二恒流源来降低噪声。然而，使用电阻器导致放大器具有相对低的电源抑制比，从而降低放大器的性能。因此，本发明使用第二恒流源并且减少由此使用第一恒定电流源产生的噪声。

10. 发明公开

EP0700191A1 A speech amplifier associated with a LED 失效
标题翻译： Sprachverstärkerund zugeordnete Leuchtdiode
公开(公告)号：EP0700191A1
公开(公告)日：1996-03-06
申请号：EP94410072.6
申请日：1994-08-31
申请人： SGS-THOMSON MICROELECTRONICS PTE LTD.
发明人： Dasgupta, Uday, c/o SGS-Thomson Microelec. Pte Ltd , Ong, Chin Pueh, c/o SGS-Thomson Microelec. Pte Ltd
IPC分类号： H04M1/60 , H04M1/76
CPC分类号： H04M1/6025 , H04M1/76
摘要： The invention relates to a transmit amplifier for a telephone set without self supply, comprising a LED (1) having an anode connected to a first positive terminal (A) of the telephone line and means for determining the ratio between the line current (IL) and the line voltage (VL). The LED (1) is supplied with a constant current and this current is derived when the voltage (VL) across the terminals (A, B) of the line becomes lower than a predetermined value (Vs1).
摘要翻译：本发明涉及一种用于没有自供电的电话机的发射放大器，包括具有连接到电话线的第一正极端子（A）的阳极的LED（1）和用于确定线路电流（IL）和线电压（VL）。 LED（1）被供给恒定电流，并且当线路的端子（A，B）两端的电压（VL）变得低于预定值（Vs1）时导出该电流。

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