Method, circuit and device for monitoring switch

Application Number: 00102963
Application Date: 2000.03.10
Publication Number: 1313618
Publication Date: 2001.09.19
Priority Information:
International: H01H9/54
Applicant(s) Name: Yunlong Science and Technology Co Ltd
Inventor(s) Name: Zheng Qiuhao
Patent Agency Code: 11021
Patent Agent: tang baobeng
Abstract A method and device for monitoring switch states of a controller with more switches features that a control IC has a switch pin connected to A/D converter, a network circuit has multiple inputs and one output connected to said switch pin, and multiple switches are respectively connected to said inputs of network circuit. A resistor network is connected between said inputs and output. Its advantages include less control lines and low cost.