1. A power supply facility comprising:
a CPU having a first power terminal and a second power terminal,
a primary power circuit having a pair of terminals respectively coupled to said first and second power terminals of said CPU for supplying electric power to energize said CPU,
an auxiliary power circuit having a first terminal coupled to said first power terminal of said CPU and a second terminal,
a detecting circuit having a pair of input terminals respectively coupled to said first and second power terminals of said CPU and an output terminal for generating an actuation signal responsive to an insufficient power level being supplied by said primary power circuit, and
a control circuit having a first input coupled to said second terminal of said auxiliary power circuit and an output terminal coupled to said second power terminal of said CPU, said control circuit having a second input terminal coupled to said output terminal of said detecting circuit for coupling said second terminal of said auxiliary power circuit to said second power terminal of said CPU responsive to receipt of said actuation signal for supplementing electric power from said primary power circuit.
2. The power supply facility according to claim 1, wherein said control circuit includes a switch to selectively couple said second terminal of said auxiliary power circuit to said second power terminal of said CPU.
3. The power supply facility according to claim 1, further comprising a circuit board, said auxiliary power circuit and said primary power circuit and said detecting circuit being disposed on said circuit board.
4. The power supply facility according to claim 1, further comprising a circuit board including a socket provided thereon, and a card including said auxiliary power circuit and said primary power circuit and said detecting circuit provided thereon, for plugging to said socket of said circuit board.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An idle speed control apparatus in a throttle body comprising:
a throttle body 1 in which an intake passage 2 is, the intake passage is opened and closed by a throttle valve 4 attached to a rotatably supported throttle valve shaft 3, and a throttle valve lever 5 operated by a driver is provided in an end portion of the throttle valve shaft 3;
a link apparatus L in which a cam lever 10 is attached to one end of a rotatably supported link shaft 9, and a link lever 11 is attached to another end of the link shaft; and
a stepping motor M in which a rotation of a rotor is converted into a linear motion toward the outside by a slider 12 so as to be output,
wherein the linear motion of the slider 12 of the stepping motor is transmitted as a rotational motion of the link shaft 9 via the link lever 11, and a low opening degree rotational position of the throttle valve lever 5 is controlled in correspondence to the rotation of the cam lever 10 rotating in synchronization with the link shaft 9.
2. An idle speed control apparatus in a throttle body as claimed in claim 1, wherein an end portion of the slider is elastically clamped to the link lever 11 by a nut 13 and a collar 14 pressed by a spring 16.
3. An idle speed control apparatus in a throttle body as claimed in claim 1, wherein the link lever is formed in an arc shape, an outer side surface 14A of the collar 14 formed in an arc shape is arranged so as to be brought into contact with an arc shaped inner side surface 11B of the link lever 11, and a radius R14 of the arc shape of the collar 14 is made smaller than a radius R11 of the arc shape of the link lever 11.
4. An idle speed control apparatus in a throttle body as claimed in claim 1, wherein two intake passages 2, 2 are provided in a side portion of the throttle body, two fuel injection valves J clamped by a fuel distribution pipe D and the throttle body 1 are arranged in the throttle body toward the respective intake passages 2, 2, and the stepping motor is arranged in a side space K formed between two fuel injection valves J, J.