Control circuit for central locking installation - uses switch to change potential to change state of control switch for remote operation of motor vehicle doors or boot

摘要

A circuit is provided for matching of importance at the common input of the central control circuit, of the wireless remote operating control signals transmitted from a transmitter to at least one receiver and led to the control unit. The central control circuit (3) has a single input (3F, 3B, 3H) for each control circuit (1), influenced across a potential change, by the change-over of the control switch (1) or the assigned control lead (2) between opposing poles of the voltage source. With several inputs (3F, 3B, 3H), only one of them is the common input (3F). An electrical matching circuit (7-0) is provided between the control unit (6) and the central control circuit (3), which matches a signal path at the output of the control unit (6) of the remote operation to the signal upon changeover of the control switch (1) connected to the common input. An output (9A) of the matching circuit (7-9) is connected to the control lead (2) and the common input of the central control circuit (3) via a logic linking circuit (4), for reciprocal electrical locking by control signals, activated by a control circuit and by a remote control. ADVANTAGE - Maintains information ICs of central control circuit. Additionally, remote control unit can be connected.