Enable switch device and load drive control apparatus equipped with same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYasuyuki Tanaka, Kei Aimi, Yasuhiro Kinugasa
Life of this patent
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Abstract
Enable switch device (100) transitions to position 1 when not operated, to position 2 when mid-operated, and to position 3 when full-operated. Enable switch device (100) includes first switch (SW1) and second switch (SW2) each being a two-position switch, and first signal processor (10). First signal processor (10) determines in which one of positions 1 to 3 an operated state of enable switch device (100) is, based on an output signal of first switch (SW1) and an output signal of second switch (SW2). First signal processor (10) detects presence or absence of failure in each of first switch (SW1) and second switch (SW2).
Claims12
An enable switch device that transitions to a first position that is OFF state when not operated, to a second position that is ON state when mid-operated, and to a third position that is OFF state when full-operated, the enable switch device comprising:
- a first switch;
- a second switch;
- and
- a first signal processor, wherein
- each of the first switch and the second switch is a two-position switch, and
- the first signal processor is configured to determine in which one of the first position, the second position, and the third position an operated state of the enable switch device is, based on an output signal of the first switch and an output signal of the second switch, and detect presence or absence of failure in each of the first switch and the second switch.
An enable switch device that transitions to a first position that is OFF state when not operated, to a second position that is ON state when mid-operated, and to a third position that is OFF state when full-operated, the enable switch device comprising at least:
- a first switch;
- a second switch;
- a third switch;
- a fourth switch;
- a first signal processor;
- and
- a second signal processor, wherein
- each of the first switch, the second switch, the third switch, and the fourth switch is a two-position switch,
- the first signal processor is configured to determine a state of the first switch and a state of the second switch and detect presence or absence of failure in each of the first switch and the second switch,
- the second signal processor is configured to determine a state of the third switch and a state of the fourth switch and detect presence or absence of failure in each of the third switch and the fourth switch, and
- an operated state of the enable switch device is determined based on a determination result of the first signal processor and a determination result of the second signal processor.
Dependencies are inferred from the claim text.