Direct current motor control device of water heater

Details Direct current motor control device of water heater Direct current motor control device of water heater

2005-03-29

2005-03-29

Masih, Karen (Department: 2837)

Electricity: motive power systems

Braking

C318S437000, C318S132000, C318S254100, C318S434000, C388S800000

Reexamination Certificate

active

06873128

ABSTRACT:
A DC motor control device of a water heater includes a fanner control system, a rotation speed detection circuit, and a micro-processing unit. The fanner control system has a DC motor and a control circuit unit. The rotation speed detection circuit is connected to the DC motor for detecting the rotation speed of the DC motor. The micro-processing unit is connected to the output terminals of the rotation speed detection circuit. The output terminals of the micro-processing unit are connected to the fanner control system. The micro-processing unit is to process outputs of the rotation speed detection circuit and then output a low DC voltage to drive the DC motor, thereby having an optimal rotation speed.

REFERENCES:
patent: 5237911 (1993-08-01), Aebi
patent: 6369538 (2002-04-01), Youn et al.

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