Abstract: An electronic control circuit for controlling left and right turn signal lamps including a turn signal circuit to activate the left or right lamp and then automatically deactivate either lamp after a predetermined time period, a hazard signal circuit to flash the left and right lamps simultaneously, a circuit to override the hazard signal circuit to activate the left or right lamp for the predetermined time period and then to reactivate the hazard signal circuit to flash the left and right lamps simultaneously, a circuit to deactivate one of the lamps during the predetermined time period and activate the other lamp, and a circuit to automatically activate the hazard signal circuit when an ignition switch is locked in a park position.

Abstract: A voltage regulator for regulating the supply of power by a fixed field A.C. generator which generates current to charge a battery, including an openable and closeable current charging path being connectable between the fixed field A.C. generator and the battery, a circuit which senses battery voltage and generates control signals in response to the voltage being above or below a predetermined level, and a circuit, responsive to the control signals, which opens and closes the current charging path and which reduces the power supplied by the generator when the current charging path is opened. The voltage regulator also has an over-current protection circuit, and circuits for indicating over-voltage and under-voltage battery conditions.

Abstract: A voltage regulator which regulates field current through a controlled field generator used to charge a battery, including a battery voltage sensing circuit which generates logic control signals in response to the battery voltage being above or below a predetermined level, an over-current sensing circuit which generates logic control signals in response to the charging current of the generator being above or below a predetermined level of charging current, a logic gate for gating the logic control signals, and a control circuit responsive to the signals from the logic gate to continue or interrupt field current through the field winding.

Abstract: An electronic control circuit for controlling left and right turn signal lamps including a turn signal circuit to activate the left or right lamp and then automatically deactivate either lamp after a predetermined time period, a hazard signal circuit to flash the left and right lamps simultaneously, a circuit to override the hazard signal circuit to activate the left or right lamp for the predetermined time period and then to reactivate the hazard signal circuit to flash the left and right lamps simultaneously, a circuit to deactivate one of the lamps during the predetermined time period and activate the other lamp, and a circuit to automatically activate the hazard signal circuit when an ignition switch is locked in a park position.