1
Harvest Nils Ole: A power supply. Danfoss Drives, Harvest Nils Ole, DANFOSS, January 15, 2004: WO/2004/006416 (44 worldwide citation)

The invention concerns a power supply comprising an electric converter, primarily for converting AC to DC. The converter comprises a self-induction, a rectifier element and a switch member controlled by a control circuit, and preferably a capacitor. The control circuit controls the switch member on ...


2
Stiles Robert W, Westermann Rasmussen Peter, Kjaer Gert, Kjartan Runarsson Einar, Fink Hansen Arne, Morando Alberto, Lungeanu Florin, Harvest Nils Ole, Hoffmann Berthelsen Lars, Robol Ronald B, Yahnker Christopher R, Cox Everett, Steen Donald, Murphy Kevin, Woodcock Walter J Jr, Hruby Daniel J: Control algorithm of variable speed pumping system. Pentair Water Pool And, Danfoss Low Power Drives, May 30, 2007: EP1790858-A1 (12 worldwide citation)

A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust t ...


3
Cox Everett, Fink Hansen Arne, Harvest Nils Ole, Hoffmann Berthelsen Lars, Hruby Daniel J, Kjaer Gert, Kjartan Runarsson Einar, Lungeanu Florin, Morando Alberto, Murphy Kevin, Robol Ronald B, Steen Donald, Yahnker Christopher, Stiles Robert W, Westermann Rasmussen Peter, Woodcock Walter J Jr: Control algorithm of variable speed pumping system. Pentair Water Pool And, Danfoss Low Power Drives, November 26, 2008: EP1995462-A2 (12 worldwide citation)

A pumping system (10, 110) includes a pump (16, 116) for moving water. In one aspect, this is in connection with performance of an operation. The system (10, 110) includes a variable speed motor (24, 124) operatively connected to drive the pump (16, 116). A value indicative of flow rate of water is ...


4
Jepsen Axel Baagø, Harvest Nils Ole, Borup Uffe Vikøren: Power converter. Powerlynx, Jepsen Axel Baagø, Harvest Nils Ole, Borup Uffe Vikøren, DANFOSS, December 31, 2003: WO/2004/001942 (10 worldwide citation)

A power converter for converting energy from a green power unit as e.g. a solar cell into energy fed into the commercial grid is described. The object is to provide a versatile modularized power converter with eased access to control of the power switches. Another object is to improve the electrical ...


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Skaug Kenneth, T Nnes Michael, Harvest Nils Ole, Krogh Egon, Aupke Andreas: Frequency converter for different mains voltages. Danfoss Drives, August 18, 2004: EP1446869-A1 (1 worldwide citation)

The invention concerns a method for speed controlling an electric motor by means of a frequency converter, and a frequency converter applying the method. The frequency converter can be connected to one of several different mains voltages and is a socalled multi-voltage unit. When connected to a lowe ...


7
HARVEST NILS OLE: [fr] Détection de connexion de mise à la terre, [de] Geerdete Verbindungserkennung, [en] Earthed connection detection. DANFOSS DRIVES, November 6, 2013: EP2660940-A1

[en] A mechanism is described for determining whether or not a ground connection is properly earthed. The mechanism comprises a current measurement transformer configured to detect the sum of currents flowing through one or more live conductors and a neutral conductor and a module for indicating whe ...


8
HARVEST NILS OLE: [en] Control circuit having power factor correction for driving electric motor. DANFOSS DRIVES, December 18, 2013: GB2503025-A

[en] A control circuit 1 for driving an electric motor includes a power factor correction circuit 3 and a microcontroller 2. The power factor correction circuit has a DC-link voltage. The control circuit is configured such that the DC-link voltage is set to the higher of the voltage level required b ...


9
Harvest Nils Ole: Circuit inverseur et methode de controle de ce circuit, Inverter circuit and a method for controlling same. Danfoss, MACRAE & CO, September 13, 1994: CA2007023

ABSTRACT An inverter circuit is provided in which two semiconductorswitching elements are arranged in series between the positiveand negative pole of a d.c. source. An alternating currentcan be derived between the two semiconductor switching elements.The two semiconductor switching elements are oper ...


10
Skaug Kenneth, Toennes Michael, Harvest Nils Ole, Krogh Egon, Aupke Andreas: Frequency converter for different mains voltages. Danfoss Drives, chengtian zheng zhangzhi cheng, July 25, 2007: CN200710007291

The invention concerns a method for speed controlling an electric motor by means of a frequency converter, and a frequency converter applying the method. The frequency converter can be connected to one of several different mains voltages and is a socalled multi-voltage unit. When connected to a lowe ...