Trigger circuit with blocking protection device for a collectorless DC motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 10, 1992
Grant Date -
N/A
app pub date -
Jul 5, 1991
filing date -
Jul 7, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention pertains to a control circuit for a collectorless DC motor where at least one power transistor (14, 16) is input-connected to each stator coil (2, 4) of the motor; said transistor is driven by at least one rotor position sensor, especially a Hall generator having commutation circuits to commute the motor current, and where a blocking protection device is provided to interrupt the motor current in an overload or blockage. The blocking protection device (26) has at least one semiconductor circuit (30) carrying the motor current which is switched through or blocked depending on its temperature.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully