Drive device of electric motor

Details Drive device of electric motor Drive device of electric motor

2008-03-14

2011-10-25

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S716000, C318S139000

Reexamination Certificate

active

08044633

ABSTRACT:
An electric motor has a field pole formed by a field current passing through a field winding. A voltage booting converter converts output voltage of a battery and outputs the voltage between a power source line and a grounding line. Field winding is electrically connected onto an electric current channel between battery and power source line and formed so that voltage switched by a switching element is applied to both ends. A controller controls the field current so as to adjust density of magnetic flux between a rotor and a stator by performing switching control on switching element and a switching element connected in parallel to field winding and converts the output voltage of battery into voltage in accordance with a voltage command value.

REFERENCES:
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patent: 2004-229461 (2004-08-01), None
patent: 2005-143157 (2005-06-01), None

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