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1. 发明授权

US4985820A Driver circuit for switching on lamp with low cold resistance 失效
标题翻译：低电阻开关灯的驱动电路
公开(公告)号：US4985820A
公开(公告)日：1991-01-15
申请号：US347973
申请日：1989-05-05
申请人： Anton Vorel
发明人： Anton Vorel
IPC分类号： H05B37/03 , H05B39/02
CPC分类号： H05B39/02
摘要： A driver circuit for switching on lamps with low cold resistance. The circuit includes a power transistor (T5) of which the collector-emitter path is connected to the lamp (12) in a series circuit which lies between a positive terminal and a ground terminal of a supply voltage source. The circuit further includes an RC member comprising a resistor (R1) which is connected on one side to the ground terminal and a capacitor (C) which is connected in series with the resistor and on one side to the positive terminal of the supply voltage source. A comparator (38) compares the voltage at the resistor (R1) with the voltage at the collector of the power transistor (T5) and furnishes at an output a blocking signal for the power transistor (T5) when the voltage at the resistor (R1) is more negative than the voltage at the collector. A limiting member (T4) limits the voltage at the resistor (R1) to a voltage value lying above the saturation voltage of the power transistor (T5).

2. 发明授权

US5278461A Integrated transistor circuit 失效
标题翻译：集成晶体管电路
公开(公告)号：US5278461A
公开(公告)日：1994-01-11
申请号：US006579
申请日：1993-01-21
申请人： Walter Bucksch , Anton Vorel
发明人： Walter Bucksch , Anton Vorel
IPC分类号： H03F1/30 , G05F3/20
CPC分类号： H03F1/302
摘要： The invention relates to an integrated transistor circuit comprising a transistor (Q1) of which the collector is connected to an input of a circuit (S) and between the base and collector of which an antisaturation diode (D1) is connected. According to the invention a further current branch is provided between the base and the emitter and includes a series circuit of a diode (D2) and a resistor (R1). As a result, a leakage current flowing in reverse direction into the antisaturation diode (D1) flows via the diode (D2) and the resistor (R1) and not via the emitter-base path of the transistor (Q1) and consequently amplification of the leakage current is prevented.
摘要翻译：本发明涉及一种集成晶体管电路，其包括晶体管（Q1），其晶体管（Q1）与集电极连接到电路（S）的输入端，并且其基极和集电极之间连接有抗饱和二极管（D1）。根据本发明，在基极和发射极之间提供另外的电流分支，并且包括二极管（D2）和电阻器（R1）的串联电路。结果，反向流入抗饱和二极管（D1）的漏电流通过二极管（D2）和电阻器（R1）而不通过晶体管（Q1）的发射极 - 基极路径流动，防止漏电流。

3. 发明授权

US5260672A Voltage follower circuit 失效
标题翻译：电压跟随电路
公开(公告)号：US5260672A
公开(公告)日：1993-11-09
申请号：US916229
申请日：1992-07-17
申请人： Anton Vorel
发明人： Anton Vorel
IPC分类号： H03F3/45 , H03F3/50
CPC分类号： H03F3/45479 , H03F3/50
摘要： A voltage follower circuit comprising an input (10) for applying an input voltage and an output (20) for emitting an output voltage dependent on the input voltage includes a first current mirror circuit (Q1, Q3) having an input transistor (Q1) and an output transistor (Q3), the current flowing through the input transistor (Q1) depending on the input voltage and the output voltage being generated in dependence upon the current through the output transistor (Q3). Associated with the output transistor (Q3) of the first current mirror circuit (Q1, Q3) is a further input transistor (Q4) which with said output transistor (Q3) forms a second current mirror circuit (Q3, Q4). In the collector line of the further input transistor (Q4) a constant current source (K2) is disposed which impresses a constant current onto the second current mirror circuit (Q4, Q3).
摘要翻译：包括用于施加输入电压的输入端（10）和用于发射取决于输入电压的输出电压的输出（20）的电压跟随器电路包括具有输入晶体管（Q1）的第一电流镜电路（Q1，Q3）和输出晶体管（Q3），根据输入电压和输出电压根据输出晶体管（Q3）的电流产生流过输入晶体管（Q1）的电流。与第一电流镜电路（Q1，Q3）的输出晶体管（Q3）相关联的是与所述输出晶体管（Q3）形成第二电流镜电路（Q3，Q4）的另一个输入晶体管（Q4）。在另一输入晶体管（Q4）的集电极线路中，设置恒定电流源（K2），该电流源将稳定的电流施加到第二电流镜像电路（Q4，Q3）上。

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