Over-the-air touch circuit
The utility model discloses a distance touch circuit which comprises an SOP28, a capacitor C1 is connected to a VDD end of the SOP28, a PA end, a PB end, a PC end and a PD end are arranged on one side of the SOP28, a PA7 end is connected with a first LED assembly, a PA3 end is connected with a secon...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a distance touch circuit which comprises an SOP28, a capacitor C1 is connected to a VDD end of the SOP28, a PA end, a PB end, a PC end and a PD end are arranged on one side of the SOP28, a PA7 end is connected with a first LED assembly, a PA3 end is connected with a second LED assembly, a key assembly is connected to one end of the first LED assembly, and the key assembly comprises an SW1, an SW2, an SW3, an SW4 and an SW5. According to the utility model, a general key touch mode and a conductive sponge touch mode are replaced by an induction bonding pad mode, the problems of complicated structure and difficulty in production of a general key can be directly solved, the key interface and the LED lamp interface of the device can be reused, and the air touch circuit has the characteristics of strong universality, high reliability and high utilization rate; under some special structures, the keys and the LED lamps can share one IO interface under the action of not influencing the touc |
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