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31. 发明公开

EP0155039A1 Current-source arrangement 有权转让
标题翻译：电源电路。
公开(公告)号：EP0155039A1
公开(公告)日：1985-09-18
申请号：EP85200254.2
申请日：1985-02-25
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert , van Tuijl, Adrianus Johannes Maria
IPC分类号： G05F3/22
CPC分类号： G05F3/227
摘要： A current-source arrangement supplying a current which increases directly proportionally to the supply voltage (V s ) and which is suitable for operation with supply voltages above approximately 0.7V, comprises a first resistor (R 10 = R) in which a current (V S -V BE )/R flows, which current is supplied by a first transistor (T 10 ) via a first current-mirror circuit (T 11 , T 12 ) and a second current-mirror circuit (T 13 , T 14 ). A second resistor (R 2 = R) is arranged in parallel with the base-emitter junction of the input transistor (T 11 ) of the first current-mirror circuit (T 11 , T 12 ), through which second resistor (R 2 ) a current (V BE )/R flows which is supplied by the first transistor (To) via the collector-base interconnection of the input transistor (T 11 ). The total current flowing through the first transistor (T io ) is then equal to (V s )/R. This current can be taken from the collector terminals (15A,15B) of the transistors (T 15A , T 15B ), whose base-emitter junctions are connected in parallel with the base-emitter junction of the first transistor (T 10 ).

32. 发明授权

EP0479374B1 Companding current-mode transconductor-C integrator 失效
标题翻译：扩具有电容跨导电流动作积分
公开(公告)号：EP0479374B1
公开(公告)日：1997-09-03
申请号：EP91202493.2
申请日：1991-09-26
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert
IPC分类号： G06G7/184
CPC分类号： G06G7/184

33. 发明授权

EP0309063B1 Amplifier arrangement 失效转让
标题翻译：放大器布置
公开(公告)号：EP0309063B1
公开(公告)日：1992-12-09
申请号：EP88202067.0
申请日：1988-09-22
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert , de Jager, Willem , Buitendijk, Pieter
IPC分类号： H03F3/30 , H03F1/32
CPC分类号： H03F3/3093 , H03F1/3217 , H03F2203/30045

34. 发明公开

EP0454250A1 Reference generator 失效
标题翻译： Bezugsgenerator。
公开(公告)号：EP0454250A1
公开(公告)日：1991-10-30
申请号：EP91200953.7
申请日：1991-04-22
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert , Costello, Philip David
IPC分类号： G05F3/26
CPC分类号： G05F3/262 , Y10S323/907
摘要： A reference generator including a first, a second and an additional third current mirror for generating both a reference output current and a reference output voltage. As the reference output voltage only depends on the gate-source voltages of transistors which are fed with a constant current, the reference output voltage has a constant value and is substantially independent of the ambient temperature.
摘要翻译：一种参考发生器，包括用于产生参考输出电流和参考输出电压的第一，第二和第三电流镜。由于参考输出电压仅取决于馈入恒定电流的晶体管的栅极 - 源极电压，所以参考输出电压具有恒定值，并且基本上与环境温度无关。

35. 发明公开

EP0454243A1 Buffer circuit 失效
标题翻译： Pufferschaltung。
公开(公告)号：EP0454243A1
公开(公告)日：1991-10-30
申请号：EP91200946.1
申请日：1991-04-22
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert , Costello, Philip David
IPC分类号： G05F3/24 , G05F1/46
CPC分类号： G05F3/24 , G05F1/462
摘要： A buffer circuit for buffering an applied reference voltage at a low output impedance. The buffer circuit includes an input transistor which is coupled to an external reference voltage and to an external reference current, and a voltage-to-current converter for applying less or more current to an output terminal of the buffer circuit. This provides a substantially temperature-independent and stable buffer circuit which consumes very little quiescent current.
摘要翻译：一种缓冲电路，用于以低输出阻抗缓冲施加的参考电压。缓冲电路包括耦合到外部参考电压和外部参考电流的输入晶体管，以及用于向缓冲电路的输出端施加较少或更多电流的电压 - 电流转换器。这提供了基本上温度独立且稳定的缓冲电路，其消耗很少的静态电流。

36. 发明公开

EP0328168A1 Push-pull output circuit which is free from hot carrier stress 失效转让
标题翻译： Push-pull-Ausgangsschaltung，Ohne Belastung durch hochenergetischeTräger。
公开(公告)号：EP0328168A1
公开(公告)日：1989-08-16
申请号：EP89200052.2
申请日：1989-01-10
申请人： Philips Electronics N.V.
发明人： Davies, Thomas James , Seevinck, Evert , Pfennings, Leonardus Chritien Matheus Giellaumes , Voss, Peter Herman , O'Connell, Cormac Michael , Phelan, Cathal Gerard , Ontrop, Hans
IPC分类号： H03K19/003 , H03K19/017
CPC分类号： H03K19/00315
摘要： A push-pull output circuit which is powered by a 5-V supply voltage and in which the push part comprises a PMOS transistor (P1) and the pull part comprises a PMOS transistor (P2) and an NMOS transistor (N1), the NMOS transistor (N1) being driven via a detection circuit (P3, P4, N2, N3) so that no hot carrier stress occurs in the NMOS transistor.
摘要翻译：推挽输出电路，其由5V电源电压供电，并且其中所述推动部分包括PMOS晶体管（P1），并且所述拉动部分包括PMOS晶体管（P2）和NMOS晶体管（N1），所述NMOS 晶体管（N1）通过检测电路（P3，P4，N2，N3）驱动，从而在NMOS晶体管中不产生热载流子应力。

37. 发明授权

EP0132863B1 Protection circuit 有权转让
标题翻译：保护电路
公开(公告)号：EP0132863B1
公开(公告)日：1988-03-30
申请号：EP84200884.9
申请日：1984-06-19
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert
IPC分类号： H03F1/52
CPC分类号： H03F1/52

38. 发明公开

EP0208365A1 Voltage-current converter 失效转让
标题翻译： Spannungsstromumsetzer。
公开(公告)号：EP0208365A1
公开(公告)日：1987-01-14
申请号：EP86201121.0
申请日：1986-06-26
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert , Wassenaar, Roelof Foppe , Holle, Eerke
IPC分类号： H03F1/32
CPC分类号： H03F1/3211
摘要： A first current-source (I₁) is coupled by means of a diode-arranged first transistor (T₁) to a first terminal (1) at reference potential and by means of a diode-arranged second transistor (T₂) to a second terminal (2). The bases of a third (T₃) and a fourth (T₄) transistor are coupled to the first (1) and the second (2) terminal, respectively. The emitters of these transistors (T₃,T₄) are coupled to a second current source (I₂). A voltage source (V) and a resistor (R₁) for converting the voltage (V) into a signal current are arranged between the first (1) and the second (2) terminal. The signal current is amplified by the translinear-circuit of the first, second, third and fourth transistors (T₁-T₄) and fed to the outputs (30,40) via cascode transistors (T₉,T₁₀). To correct the non-linearity in the voltage-current conversion due to the non-linear emitter resistors of the first (T₁) and the second (T₂) transistor a correction circuit (5) is arranged between the first (1) and the second (2) terminal, which has a negative input-resistance.
摘要翻译：第一电流源（I1）通过二极管布置的第一晶体管（T1）耦合到参考电位的第一端子（1），并且借助于二极管布置的第二晶体管（T2）耦合到第二端子 2）。第三（T3）和第四（T4）晶体管的基极分别耦合到第一（1）和第二（2）端子。这些晶体管（T3，T4）的发射极耦合到第二电流源（I2）。用于将电压（V）转换为信号电流的电压源（V）和电阻器（R1）布置在第一（1）和第二（2）端子之间。信号电流由第一，第二，第三和第四晶体管（T1-T4）的跨导线路放大，并通过共源共栅晶体管（T9，T10）馈送到输出端（30,40）。为了校正由于第一（T1）和第二（T2）晶体管的非线性发射极电阻引起的电压 - 电流转换中的非线性，校正电路（5）被布置在第一（1）和第二（2）端子，其具有负输入电阻。

39. 发明公开

EP0156426A1 Amplifier arrangement comprising a protection circuit 有权
标题翻译：带保护电路的放大器装置。
公开(公告)号：EP0156426A1
公开(公告)日：1985-10-02
申请号：EP85200349.0
申请日：1985-03-11
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert
IPC分类号： H03F1/52 , H03F1/08
CPC分类号： H03F1/52 , H03F1/083
摘要： protection circuit for a power amplifier in which feedback is applied from the output (8) to the inverting input (2) of the amplifier by a negative feedback network comprising a first resistor (R 2 ), a second resistor (R 1 ) and a capacitor (C 2 ), comprises a voltage-current converter (12) whose input is connected to the output of the amplifier which is loaded by a load (R L ) and whose output is connected to the junction point of the second resistor (R,) and the capacitor (C 2 ). When the protection circuit is activated if the output transistors of the amplifier are loaded excessively for example due to short-circuiting of the load, the input voltage of the voltage-current converter (12), for low frequencies, is converted into a current which is re-converted into a voltage in the capacitor (C 2 ), which voltage is added to the normal negative-feedback voltage provided by the voltage divider comprising the first resistor (R 2 ) and the second resistor (R,). This provides a strong negative feedback and hence a satisfactory protection. For higher frequencies the capacitor (C 2 ) constitutes a short circuit, so that the negative feedback changes to the normal feedback, thus ensuring that the amplifier remains stable under all conditions. The amplifier is then protected by the thermal cut-out which is normally present.

40. 发明公开

EP0129936A1 Current source circuit arrangement 有权转让
标题翻译： Stromquellenschaltungsvorrichtung。
公开(公告)号：EP0129936A1
公开(公告)日：1985-01-02
申请号：EP84200892.2
申请日：1984-06-20
申请人： Philips Electronics N.V.
发明人： Seevinck, Evert
IPC分类号： G05F1/20
CPC分类号： G05F3/227
摘要： Of a first and a second PNP transistor (T,; T 2 ) having commoned base electrodes, the emitters are connected through resistors (R,; R.) to the positive supply voltage terminal (2). The collector lead of the first transistor (T,) includes a current source (3), which supplies a current which is reproduced at the output terminal (4). The commoned base electrodes are driven by a third transistor (T.) connected as an emitter follower, its emitter lead including a current source (5). The base of the third transistor (Ts) is connected through a resistor (R 3 ) to the positive supply voltage terminal (2) as a result of which supply voltage variations appear also at the commoned bases of the first and second transistors (T,; T 2 ) so that the output current at the output terminal (4) is substantially independent of supply voltage variations. A differential amplifier comprising fourth and fifth transistors (T 8 ; T 7 ), in which the base of the fourth transistor (T.) is connected to the collector of the first transistor (T,) and the base of the fifth transistor (T 7 ) is connected to a reference voltage (Vref),controls the voltage at the base of the third transistor (T 8 ) so that the collector current of the first transistor (T 1 ) is substantially equal to the current of the current source (3).
摘要翻译：在具有公共基极的第一和第二PNP晶体管（T1; T2）中，发射极通过电阻（R1; R2）连接到正电源电压端子（2）。第一晶体管（T1）的集电极引线包括电流源（3），其提供在输出端子（4）处再现的电流。公共基极由作为射极跟随器连接的第三晶体管（T5）驱动，其发射极引线包括电流源（5）。第三晶体管（T5）的基极通过电阻器（R5）连接到正电源电压端子（2），由此在第一和第二晶体管（T1; T2）的共用基极处也出现电源电压变化），使得输出端（4）处的输出电流基本上与电源电压变化无关。一种包括第四和第五晶体管（T6; T7）的差分放大器，其中第四晶体管（T6）的基极连接到第一晶体管（T1）的集电极和第五晶体管（T7）的基极连接到参考电压（Vref）控制第三晶体管（T5）的基极处的电压，使得第一晶体管（T1）的集电极电流基本上等于电流源（3）的电流。

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