Abstract: A bootstrap circuit includes an N-channel MOS transistor including: a first N-type semiconductor layer formed on a surface of a P-type semiconductor substrate and electrically connected to a bootstrap capacitor; a P-type semiconductor layer formed on a surface of the first N-type semiconductor layer; a second N-type semiconductor layer formed on a surface of the P-type semiconductor layer; a first electrode electrically connected to the P-type semiconductor layer; a second electrode electrically connected to the second N-type semiconductor layer; and a power-source terminal connected to each of the first electrode and the second electrode for supplying a power-source voltage thereto, the N-channel MOS transistor supplying power to the bootstrap capacitor, and a current limiting element connected between the power-source terminal and the first electrode.

Abstract: An automatic temperature control system for a vehicle air conditioner including a cool air supply mechanism having an air flow control device, an air flow dividing device for dividing a cool air flow supplied from the cool air supply mechanism into a primary flow and a secondary flow, a heat source for heating the primary flow, and a mixing mechanism for mixing the primary flow as warmed past the heat source, and the secondary air which remains cool, with each other.

Abstract: A wind deflector arrangement in a sliding roof for a vehicle which includes a roof opening, the front edge of which is curved forwardly along the upper edge of a front window of the vehicle. A wind deflector is arcuated to conform with a curvature of the upper surface of the roof and with a curvature of the front edge of the roof opening. Arms are pivotally mounted on the inner side edges of the roof opening. The wind deflector is supported at rear ends thereof by the arms, so as to be able to be angular displaced with respect to the arms, through resilient members.