DC MOTOR AUTO LIFT
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United States of America
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N/A
Issued Date -
Jan 16, 2020
app pub date -
Jul 13, 2018
filing date -
Jul 13, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A DC motor drive comprises an AC to DC exchange system, a circuit protection system and a motor start system connected to a DC motor. The AC to DC exchange system is connected to an AC power supply and is configured to convert AC power to DC power. The circuit protection system is connected to the AC to DC exchange system. The circuit protection system includes a resistor connected in series with a diode. The motor start system includes a first switch and a second switch. The first switch is connected across the DC motor and the second switch connected in series with the DC motor. When the AC supply is applied to the DC motor drive of the auto lift, the AC to DC exchange system converts the AC power to DC power which starts the DC motor by means of the motor start system.
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