Electronic circuit for supplying a voltage

Details Electronic circuit for supplying a voltage Electronic circuit for supplying a voltage

1997-12-10

1999-10-05

Paladini, Albert W.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 66, 307 85, 307 86, 320125, 123630, H02J 304

Patent

active

059629282

ABSTRACT:
The electronic circuit for supplying a voltage at a common output terminal (KI.U) has a number of supply circuits, each of which includes a source (B1, B2, . . . , Bn) of electric current and transistors (T10,T11; T20,T21; . . . ; Tn0,Tn1) connected with the source (B1, B2) to form an analog switch for gating the electric current, each supply circuit being connected with the common output terminal (KI.U); and a circuit device for controlling a potential at the gate electrodes of the transistors (T10,T11; T20,T21; . . . ; Tn0,Tn1) in each supply circuit, whereby the supply voltage (UV) is provided by a selected one of the supply circuits. In a preferred embodiment the circuit device for controlling the gate electrode potentials includes a switch (Z) connected between a current supply and the gate electrodes of the transistors in each of the supply circuits by means of at least one resistor and a Zener diode arranged in a blocking direction with another transistor (T12) connected between the Zener diode and the at least one resistor.

REFERENCES:
patent: 4036199 (1977-07-01), Chateau
patent: 4297629 (1981-10-01), Godard et al.
patent: 5204610 (1993-04-01), Pierson et al.
patent: 5316868 (1994-05-01), Dougherty et al.
patent: 5416401 (1995-05-01), Neuhaus

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