PDA with built-in voltage protection

Details PDA with built-in voltage protection PDA with built-in voltage protection

2007-01-02

2007-01-02

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

Reexamination Certificate

active

10729985

ABSTRACT:
A present invention provides a PDA with built-in voltage protection, comprising a main device, a socket, and a voltage protection module. The main device performs necessary data processing. The socket connects to an adapter. The voltage protection module is coupled between the main device and the socket, wherein the voltage protection module receives an input voltage from the adapter and allowing the input voltage to be applied to the main device when the input voltage is between a preset maximum voltage and a preset minimum voltage.

REFERENCES:
patent: 3428864 (1969-02-01), Redmond et al.
patent: 3657603 (1972-04-01), Adams
patent: 4368499 (1983-01-01), Stifter
patent: 4999730 (1991-03-01), Pickard
patent: 5350949 (1994-09-01), Yazi
patent: 6301131 (2001-10-01), Yoshida
patent: 6331763 (2001-12-01), Thomas et al.
patent: 6804100 (2004-10-01), Astala

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