Patents by Inventor Aleks Velhner
Aleks Velhner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7245112Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: GrantFiled: February 28, 2006Date of Patent: July 17, 2007Assignee: Teleflex Canada IncorporatedInventors: Aleks Velhner, Neil Garfield Allyn, Terry Moreau
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Patent number: 7215100Abstract: An apparatus for regulating a transient response of an output signal of an electrical generator. The apparatus comprises a tapped output winding means for providing a first AC signal and a second AC signal. The first and second AC signals have respective RMS values. The RMS value of the first AC signal is greater than the RMS value of the second AC signal. An AC switching means for selecting between the first AC signal or the second AC signal, and thereby providing a switched AC signal which has a duty cycle. A rectifier means for rectifying the switched AC signal and providing a rectified DC signal. The rectified DC signal has a DC signal component, a square wave signal component and a ripple signal component. The square wave signal component has a duty cycle. The duty cycle of the square wave signal component is equal to the duty cycle of the switched AC signal. A filter means for filtering the rectified DC signal and for providing the output signal.Type: GrantFiled: March 21, 2005Date of Patent: May 8, 2007Assignee: Teleflex Canada Inc.Inventors: Aleks Velhner, Neil Garfield Allyn, Terry Moreau
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Patent number: 7161330Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: GrantFiled: February 28, 2006Date of Patent: January 9, 2007Assignee: Teleflex Canada IncorporatedInventors: Aleks Velhner, Neil Garfield Allyn, Terry Moreau
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Patent number: 7154248Abstract: There is provided an adjustable integral component in a feedback loop of a closed loop control system. The closed loop control system controls an output signal of an electric generator. The adjustable integral component provides an integral signal. The integral signal is proportional to the output signal in a first operational mode. The integral signal is proportional to a time integral of an output signal in a second operational mode. According to another aspect of the invention there is provided a non-linear component in a feedback loop of a closed loop control system. The closed loop control system controls an output signal of an electric generator. The electric generator having non-linear characteristics. The feedback loop has an error signal, of which the output signal is responsive to. The non-linear component receives a load signal and provides a non-linear signal related to the non-linear characteristics of the electric generator. The error signal is responsive to the non-linear signal.Type: GrantFiled: July 15, 2004Date of Patent: December 26, 2006Assignee: Teleflex Canada Inc.Inventors: Aleks Velhner, Neil Garfield Allyn, Terry Moreau
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Patent number: 7154249Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: GrantFiled: February 17, 2005Date of Patent: December 26, 2006Assignee: Teleflex Canada IncorporatedInventors: Aleks Velhner, Neil Garfield Allyn, Terry Moreau
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Publication number: 20060208710Abstract: An apparatus for regulating a transient response of an output signal of an electrical generator. The apparatus comprises a tapped output winding means for providing a first AC signal and a second AC signal. The first and second AC signals have respective RMS values. The RMS value of the first AC signal is greater than the RMS value of the second AC signal. An AC switching means for selecting between the first AC signal or the second AC signal, and thereby providing a switched AC signal which has a duty cycle. A rectifier means for rectifying the switched AC signal and providing a rectified DC signal. The rectified DC signal has a DC signal component, a square wave signal component and a ripple signal component. The square wave signal component has a duty cycle. The duty cycle of the square wave signal component is equal to the duty cycle of the switched AC signal. A filter means for filtering the rectified DC signal and for providing the output signal.Type: ApplicationFiled: March 21, 2005Publication date: September 21, 2006Inventors: Aleks Velhner, Neil Allyn, Terry Moreau
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Publication number: 20060181249Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: ApplicationFiled: February 17, 2005Publication date: August 17, 2006Inventors: Aleks Velhner, Neil Allyn, Terry Moreau
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Publication number: 20060181251Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: ApplicationFiled: February 28, 2006Publication date: August 17, 2006Inventors: Aleks Velhner, Neil Allyn, Terry Moreau
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Publication number: 20060181250Abstract: There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an exciter field signal, and an exciter field coil responsive to the exciter field signal and which provides an exciter magnetic field, and an exciter armature coil responsive to the exciter magnetic field and which provides an exciter armature signal. The apparatus further includes a control circuit responsive to the exciter armature signal, and a variable impedance in series with the generator field coil and responsive to the control circuit. The variable impedance serves to dissipate the quantity of stored magnetic energy. In another embodiment the apparatus includes a positive feedback circuit responsive to the exciter armature signal and operable to dissipate the quantity of stored magnetic energy.Type: ApplicationFiled: February 28, 2006Publication date: August 17, 2006Inventors: Aleks Velhner, Neil Allyn, Terry Moreau
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Publication number: 20060054128Abstract: A method and apparatus for detecting slippage of a coolant pump drive belt on an internal combustion engine having a generator driven by the belt. The method comprises monitoring electrical output of the generator and determining that coolant belt slippage has occurred when the electrical output is reduced below a normal electrical output level.Type: ApplicationFiled: September 15, 2004Publication date: March 16, 2006Inventors: Neil Allyn, Aleks Velhner
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Publication number: 20060012344Abstract: There is provided an adjustable integral component in a feedback loop of a closed loop control system. The closed loop control system controls an output signal of an electric generator. The adjustable integral component provides an integral signal. The integral signal is proportional to the output signal in a first operational mode. The integral signal is proportional to a time integral of an output signal in a second operational mode. According to another aspect of the invention there is provided a non-linear component in a feedback loop of a closed loop control system. The closed loop control system controls an output signal of an electric generator. The electric generator having non-linear characteristics. The feedback loop has an error signal, of which the output signal is responsive to. The non-linear component receives a load signal and provides a non-linear signal related to the non-linear characteristics of the electric generator. The error signal is responsive to the non-linear signal.Type: ApplicationFiled: July 15, 2004Publication date: January 19, 2006Inventors: Aleks Velhner, Neil Allyn, Terry Moreau