Electric motor control with integral battery charger

Details Electric motor control with integral battery charger Electric motor control with integral battery charger

1995-01-03

1996-03-19

Ro, Bentsu

Electricity: motive power systems

Control of both armature circuit

318139, 307 101, 320 50, 320 64, H02K 2352, H02J 714

Patent

active

055005799

ABSTRACT:
An electric motor control with integral battery charger includes battery terminals (201) for connection to a battery (203). A boost converter circuit (111) is coupled to an armature winding (209) of the electric motor (117), and has an input (131) coupled to a power source (211). A buck converter circuit (105) is coupled to a field winding (207) of the electric motor (117), and an input (133) coupled to the power source (211). A controller (205), is coupled to the battery terminals (201) and the power source (211). The controller (205) couples a boost output (107) of the boost converter circuit (111 ) to the battery terminals (201) while a terminal voltage of the power source (211) is lower than a terminal voltage of the battery (203) measured at the battery terminals (201), and couples a buck output (107) of the buck converter circuit (105) to the battery terminals (201 ) while the terminal voltage of the power source (211) is higher than the terminal voltage of the battery (203).

REFERENCES:
patent: 3904947 (1975-09-01), Crews
patent: 3943423 (1976-03-01), Hoffman
patent: 3970912 (1976-07-01), Hoffman
patent: 4143280 (1979-03-01), Kuehn, Jr. et al.
patent: 4258304 (1981-03-01), Bourke
patent: 4308492 (1981-12-01), Mori et al.
patent: 4616166 (1986-10-01), Cooper et al.
patent: 4920475 (1990-04-01), Rippel

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