发明名称 |
VENTILATION HEAT EXCHANGER UNITS AND HOUSING FOR VENTILATION SYSTEMS |
摘要 |
<p>The drive circuit 200 of a ventilation fan 34 driven by an electric motor 210 comprises: a speed control device 216 that provides an output to the motor; and commissioning circuitry. The commissioning circuitry has a calibration mode and a run mode. In calibration mode, a motor rotation speed can be adjusted to a desired value. This desired value is locked-in when the commissioning circuitry is set in the run mode. The commissioning circuitry may be toggled between calibration and run mode by a jumper 283 associated with a micro-controller 220 of the commissioning circuitry. When the jumper is connected (calibration mode), the desired motor rotation speed can be set by varying a voltage at a trim terminal 228 of the micro-controller. A plurality of preset speed settings, such as normal speed and boost speed, may be selected by toggling switches 242-245 associated with an output terminal 226 of the micro-controller, with the trim terminal being used to calibrate each of these preset speed settings in the calibration mode. The switches may determine a pulse width modulation signal output 221 by the micro-controller to command the motor speed.</p> |
申请公布号 |
EP2242959(A2) |
申请公布日期 |
2010.10.27 |
申请号 |
EP20090702424 |
申请日期 |
2009.01.15 |
申请人 |
TITON HARDWARE LIMITED |
发明人 |
HOWLETT, NICHOLAS, CHARLES;COWELL, PAUL, STEVEN;TOMLIN, MICHAEL, EDWARD;PEAK, RICHARD, ALLAN;FULLER, DANIEL, LEONARD |
分类号 |
F24F7/08;F24F11/00;F24F12/00;F24F13/20 |
主分类号 |
F24F7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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