Abstract: Driving circuit for an ignition element of a passenger protection system The present invention relates to a driving circuit for an ignition element of a passenger protection system which has the following features: at least one first semiconductor component (HS; HS1, HS2) with a control connection (G) and a first and second load connection (D, S) and at least one second semiconductor component (LS; LS1, LS2) with a control connection (G) and a first and second load connection (D, S), at least one first and one second connection terminal (K2, K3; K21, K22, K31, K32) for connecting a load in series with the at least one first and at least one second semiconductor component the at least one first semiconductor component (HS; HS1, HS2) being integrated in at least one first semiconductor chip (IC1; IC11, IC12) and the at least one second semiconductor component (LS; LS1, LS2) being integrated in a second semiconductor chip (IC2) which are accommodated in a common package (PA) from which the at least one first

Abstract: Driving circuit for an ignition element of a passenger protection system The present invention relates to a driving circuit for an ignition element of a passenger protection system which has the following features: at least one first semiconductor component (HS; HS1, HS2) with a control connection (G) and a first and second load connection (D, S) and at least one second semiconductor component (LS; LS1, LS2) with a control connection (G) and a first and second load connection (D, S), at least one first and one second connection terminal (K2, K3; K21, K22, K31, K32) for connecting a load in series with the at least one first and at least one second semiconductor component the at least one first semiconductor component (HS; HS1, HS2) being integrated in at least one first semiconductor chip (IC1; IC11, IC12) and the at least one second semiconductor component (LS; LS1, LS2) being integrated in a second semiconductor chip (IC2) which are accommodated in a common package (PA) from which the at least one first

Abstract: A backup power supply for a restraint control module is disclosed that includes a main power source that is connected to a backup power source charging circuit. A boost converter control and driver circuit is connected with the main power source and the backup power source such that the boost converter control and driver circuit controls the charging of the backup power source with the main power source during normal operation. A backup power supply control and driver circuit is connected with a backup power supply switching device. The backup power supply control and driver circuit switches the source of power from the main power source to the backup power source when the backup power supply control circuit senses a loss of power from the main power source.

Abstract: A non-inverting dual voltage regulation set point power supply for a restraint control module is disclosed that includes a main power source. A regulated voltage generation circuit connected with said main power source for generating a regulated output voltage having an upper set point and a lower set point. A buck switch connected to said main power source and said regulated voltage generation circuit for bucking the regulated output voltage generated by said regulated voltage generation circuit to said upper set point if said voltage supplied from said main power source is greater than said upper set point. A boost switch connected with said regulated voltage generation circuit for boosting the regulated output voltage generated by said regulated voltage generation circuit to said lower set point if said voltage supplied from said main power source is less than said lower set point.

Abstract: A backup power supply for a restraint control module is disclosed that includes a main power source that is connected to a backup power source charging circuit. A boost converter control and driver circuit is connected with the main power source and the backup power source such that the boost converter control and driver circuit controls the charging of the backup power source with the main power source during normal operation. A backup power supply control and driver circuit is connected with a backup power supply switching device. The backup power supply control and driver circuit switches the source of power from the main power source to the backup power source when the backup power supply control circuit senses a loss of power from the main power source.

Abstract: A non-inverting dual voltage regulation set point power supply for a restraint control module is disclosed that includes a main power source. A regulated voltage generation circuit connected with said main power source for generating a regulated output voltage having an upper set point and a lower set point. A buck switch connected to said main power source and said regulated voltage generation circuit for bucking the regulated output voltage generated by said regulated voltage generation circuit to said upper set point if said voltage supplied from said main power source is greater than said upper set point. A boost switch connected with said regulated voltage generation circuit for boosting the regulated output voltage generated by said regulated voltage generation circuit to said lower set point if said voltage supplied from said main power source is less than said lower set point.

Abstract: A method and system for measuring the capacitance of a backup power source in a backup power supply system is disclosed by the present invention. The regulated output voltage is set to a nominal regulated output voltage during normal operation and then adjusted to a predetermined regulated output voltage during a capacitance measurement. A pair of predetermined loads is connected to the backup power source in consecutive order for discharging energy from the backup power source. A counter is used to count the time that elapses before the regulated output voltage reaches the lower regulated output voltage or the backup power supply system begins regulating. The resulting counts are used by a main control unit, together with several other known values, to determine the capacitance of the backup power source.