Safety function control for an electric machine and method of operating the electric machine
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United States of America Patent
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Mar 21, 2017
Grant Date -
Apr 24, 2014
app pub date -
Oct 24, 2013
filing date -
Oct 24, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and a method actuate a frequency converter of an electric machine having a safety function, in particular a safe-torque-off (STO) function. Wherein, by a preferably clocked converter circuit, an electrically isolated output voltage is generated from an input voltage, from which output voltage a control signal is generated for the frequency converter for the operation thereof in accordance with standards and for triggering the safety function. An actuation signal is generated for a semiconductor switch which is periodically connected to the input voltage, and the output voltage is limited when the output voltage exceeds a switching threshold.
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Patent Citation Ranking
- 1 Citation Count
- H03K Class
- 17.11 % this patent is cited more than
- 8 Age
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 21, 2028 |
