Run and brake control circuit
US4736146A · kind A · utility
4Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor run and brake control circuit for controlling alternating current to a three-phase motor in which the circuit is operated by a single logic level input signal. When the input signal is low, a run relay is closed and AC power is applied to the motor. When the input signal goes high, the run relay is opened and the motor is braked for a fast stop. A brake capacitor and charge resistor limit both the time during which braking current is applied and the repetition rate of braking cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.