Keying circuit for direct drinking machine handheld device

The utility model belongs to the field of household direct drinking machines and relates to a keying circuit for a direct drinking machine handheld device. According to the keying circuit, two independent keys K1 and K2 are additionally arranged on the basis of a 4*4 matrix keyboard and both grounde...

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Bibliographische Detailangaben
1. Verfasser:	SUN ZONGWEI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR MAKING BEVERAGES COFFEE MILLS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DOMESTIC ARTICLES OR APPLIANCES FUNCTIONAL ELEMENTS OF SUCH SYSTEMS FURNITURE HUMAN NECESSITIES KITCHEN EQUIPMENT MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SPICE MILLS SUCTION CLEANERS IN GENERAL
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Beschreibung
Zusammenfassung:	The utility model belongs to the field of household direct drinking machines and relates to a keying circuit for a direct drinking machine handheld device. According to the keying circuit, two independent keys K1 and K2 are additionally arranged on the basis of a 4*4 matrix keyboard and both grounded through a current-limiting resistor R11 of the matrix keyboard. The keying circuit can effectively satisfy the requirement of the direct drinking machine handheld device.