The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 27, 2009

Filed:

Oct. 31, 2003
Applicants:

Lain-ken Lin, Changhua County, TW;

Magellan Chiu, Taichung, TW;

Venson Kuo, Kaohsiung County, TW;

Wen-shi Huang, Taoyuan, TW;

Inventors:

Lain-ken Lin, Changhua County, TW;

Magellan Chiu, Taichung, TW;

Venson Kuo, Kaohsiung County, TW;

Wen-shi Huang, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An overvoltage protective device for DC motor is disclosed. The device includes a voltage-dividing circuit and a control unit, and is electrically connected to a DC motor in parallel. The voltage-dividing circuit has one end thereof electrically connected to an input voltage of the DC motor, and the other end thereof grounded. The control unit is electrically connected to a part of the voltage-dividing circuit for accessing a voltage level thereof and thereby driving the DC motor.


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