Motor control and power systems and methods of operation thereof

Details Motor control and power systems and methods of operation thereof Motor control and power systems and methods of operation thereof

1987-05-21

1990-02-27

Ro, Bentsu

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

388816, 388817, 388819, 307 80, 307 86, H02P 5402

Patent

active

049053000

ABSTRACT:
A pulsating D.C. voltage is developed by a rectifier 86 and is filtered by a capacitor 100 to facilitate application of a relatively smooth, enhanced D.C. voltage to a motor 106.
The charged voltage of capacitor 100 is applied across a series circuit which includes a rheostat 118, a resistor 126 and motor 106. When the CEMF of motor 106 drops as a result of a decrease in motor speed, a disc 122 is biased through the voltage appearing across rheostat 118 and resistor 126 to cause an SCR 116 to fire. When SCR 116 fires, the voltage of capacitor 100 supplies a boost of power to motor 106 to overcome the decrease in motor speed.
A circuit 212 prevents an overspeed of motor 106 from occurring while braking circuits 264, 266 and 268 provide for a dynamic braking effect when the motor is a universal motor.

REFERENCES:
patent: Re25203 (1962-07-01), Momberg et al.
patent: 2357418 (1944-09-01), Mattheyses
patent: 2912632 (1959-11-01), Turtil
patent: 3095514 (1963-06-01), Custer et al.
patent: 3176212 (1965-03-01), De Puy
patent: 3189788 (1965-06-01), Cady
patent: 3191112 (1965-06-01), Cain
patent: 3242410 (1986-03-01), Cockrell
patent: 3278821 (1966-10-01), Gutzwiller
patent: 3297931 (1967-01-01), Gurwicz
patent: 3336490 (1967-08-01), Yelpo et al.
patent: 3355650 (1967-11-01), Tolmie
patent: 3411062 (1968-11-01), Kamens
patent: 3414802 (1968-12-01), Harrigan et al.
patent: 3461371 (1969-08-01), Klayman et al.
patent: 3508134 (1970-04-01), Dosch et al.
patent: 3548276 (1970-12-01), Gross
patent: 3564372 (1971-02-01), Vogelsberg et al.
patent: 3588653 (1971-06-01), Corrigall
patent: 3652919 (1972-03-01), Harrigan
patent: 3783361 (1974-01-01), Mason
patent: 3800202 (1974-03-01), Oswald
patent: 3886438 (1975-05-01), Bouman
patent: 3926264 (1975-12-01), Bardwell et al.
patent: 4074175 (1978-02-01), Born et al.
patent: 4144482 (1979-03-01), Schwab
patent: 4181876 (1980-01-01), Kato et al.
patent: 4246521 (1981-01-01), Soeda et al.
patent: 4250436 (1981-02-01), Weissman
patent: 4284930 (1981-08-01), Matty
patent: 4303874 (1981-12-01), Iwai
patent: 4390823 (1983-06-01), Brown et al.
patent: 4390824 (1983-06-01), Brown
patent: 4394606 (1983-07-01), Woerwag
patent: 4453115 (1984-06-01), Yoshida
patent: 4473784 (1984-09-01), Morez
patent: 4504769 (1985-03-01), Fushiya et al.
patent: 4532567 (1985-07-01), Kade
patent: 4543522 (1985-09-01), Moreau
patent: 4546305 (1985-10-01), Goddijn
patent: 4560887 (1985-12-01), Schneider
patent: 4588900 (1986-05-01), Honjo
patent: 4609828 (1986-09-01), Small
patent: 4644229 (1987-02-01), Masaki
patent: 4720641 (1988-01-01), Faini
"Model Train Controller", Practical Electronics, vol. 17, No. 1, Jan. 1981.

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