Electro magnetic braking circuit for small single phase inductio

Details Electro magnetic braking circuit for small single phase inductio Electro magnetic braking circuit for small single phase inductio

1987-12-16

1989-03-14

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Braking

318817, 318762, 318759, H02P 144

Patent

active

048127280

ABSTRACT:
A capacitive breaking circuit for a single phase induction motor using a double throw power switch which in the off position, connects a series string, consisting of a charging rectifier diode, a current limiting resistor, a centrifugal switch and a braking capacitor, to the two power input terminals of a small single phase induction motor. With this circuit, while the motor is running, when the power switch of the motor is turned ON, DC current also charges the braking capacitor. When the power switch of the motor is turned to OFF, the braking capacitor discharges through the motor winding via the power switch to produce the braking function.

REFERENCES:
patent: 2445806 (1948-07-01), Snyder
patent: 2767362 (1956-10-01), Beaubien
patent: 3475669 (1969-10-01), Oltendorf
patent: 3798523 (1974-03-01), Gross
patent: 4241302 (1980-12-01), Benjamin
patent: 4263770 (1981-04-01), Furuya

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