Patents by Inventor Patrick E. G. Smeets
Patrick E. G. Smeets 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: 9423851Abstract: A power management integrated circuit comprises a plurality of power source circuits power received at a power supply input terminal to supply power to a plurality of power supply output terminals. A plurality of power source circuits is coupled between the power supply input terminal and the respective power supply output terminals. The power management integrated circuit comprises an active configuration memory and a communication interface with at least one terminal for uploading configuration data from outside the power management integrated circuit into the configuration memory. A control circuit controls operating parameters of respective ones of the power source circuits dependent on the configuration data from the active configuration memory. Thus, the power management integrated circuit is able to switch between different power supply states in a dynamically configurable way, without requiring external control over the configuration during switching.Type: GrantFiled: May 22, 2015Date of Patent: August 23, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sasa Ristic, Insun Van Loo, Patrick E. G. Smeets
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Publication number: 20150331469Abstract: A power management integrated circuit comprises a plurality of power source circuits power received at a power supply input terminal to supply power to a plurality of power supply output terminals. A plurality of power source circuits is coupled between the power supply input terminal and the respective power supply output terminals. The power management integrated circuit comprises an active configuration memory and a communication interface with at least one terminal for uploading configuration data from outside the power management integrated circuit into the configuration memory. A control circuit controls operating parameters of respective ones of the power source circuits dependent on the configuration data from the active configuration memory. Thus, the power management integrated circuit is able to switch between different power supply states in a dynamically configurable way, without requiring external control over the configuration during switching.Type: ApplicationFiled: May 22, 2015Publication date: November 19, 2015Inventors: Sasa Ristic, Insun Van Loo, Patrick E.G. Smeets
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Patent number: 9052892Abstract: A power management integrated circuit comprises a plurality of power source circuits power received at a power supply input terminal to supply power to a plurality of power supply output terminals. A plurality of power source circuits is coupled between the power supply input terminal and the respective power supply output terminals. The power management integrated circuit comprises an active configuration memory and a communication interface with at least one terminal for uploading configuration data from outside the power management integrated circuit into the configuration memory. A control circuit controls operating parameters of respective ones of the power source circuits dependent on the configuration data from the active configuration memory. Thus, the power management integrated circuit is able to switch between different power supply states in a dynamically configurable way, without requiring external control over the configuration during switching.Type: GrantFiled: May 27, 2008Date of Patent: June 9, 2015Assignee: Ericsson Modems, SAInventors: Sasa Ristic, InSun Van Loo, Patrick E. G. Smeets
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Publication number: 20100250974Abstract: A power management integrated circuit comprises a plurality of power source circuits power received at a power supply input terminal to supply power to a plurality of power supply output terminals. A plurality of power source circuits is coupled between the power supply input terminal and the respective power supply output terminals. The power management integrated circuit comprises an active configuration memory and a communication interface with at least one terminal for uploading configuration data from outside the power management integrated circuit into the configuration memory. A control circuit controls operating parameters of respective ones of the power source circuits dependent on the configuration data from the active configuration memory. Thus, the power management integrated circuit is able to switch between different power supply states in a dynamically configurable way, without requiring external control over the configuration during switching.Type: ApplicationFiled: May 27, 2008Publication date: September 30, 2010Inventors: Sasa Ristic, In Sun Van Loo, Patrick E. G. Smeets
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Patent number: 6018467Abstract: A resonant mode power supply includes a D.C. voltage source and switching elements for alternatively connecting an oscillating circuit, including a primary winding of a transformer, to the D.C. voltage source and to ground. A first secondary winding supplies the main output voltage of the power supply and a second secondary winding provides a control output voltage. An opto-coupler is included and has a light emitter connected to the second secondary winding, and a light sensor connected to a controller for controlling the switching of the switching elements, wherein the higher the frequency of the switching, the lower the power being supplied by the power supply. Burst mode stand-by is started by the first secondary winding being shunted to the second secondary winding causing the light emitter to emit a maximum amount of light. The controller increases the switching frequency until it exceeds a predetermined maximum frequency.Type: GrantFiled: July 28, 1999Date of Patent: January 25, 2000Assignee: Philips Electronics North America CorporationInventors: Naveed Majid, Jerzy Janczak, Patrick E. G. Smeets
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Patent number: 5708575Abstract: The power supply apparatus serves to convert an electric direct voltage, acting as an input voltage, into an output voltage and comprises positive and negative input terminals (1, 3) which are arranged to receive the input voltage.Type: GrantFiled: May 9, 1996Date of Patent: January 13, 1998Assignee: U.S. Philips CorporationInventors: Antonius A.M. Marinus, Patrick E.G. Smeets
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Patent number: 5703763Abstract: A power supply apparatus including at least one coil and a controllable switching element and a peak-limiting circuit for limiting the maximum voltage across the switching element. The peak-limiting circuit includes a capacitor and a series connection of a first rectifier element and a resistor, as well as a second rectifier element which connects one end of the series connection to the positive input terminal of the apparatus. The energy dissipation in the resistor is dependent on the duty cycle of the switching element. The duty cycle in turn is dependent on the load of the power supply apparatus. Consequently, when the load of the power supply apparatus is small, the dissipation of the apparatus will be substantially lower.Type: GrantFiled: August 29, 1996Date of Patent: December 30, 1997Assignee: U.S. Philips CorporationInventor: Patrick E. G. Smeets
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Patent number: 5689407Abstract: In a standby mode, a switched-mode power supply circuit may be operated in a burst mode with reduced secondary voltages (Vo1, Vo2) for supplying a standby voltage (Vo1) at a very high efficiency. In a normal operating mode of the power supply, a control circuit (1) is maintained in its on-state by a power supply voltage (Vcc) generated by the power supply. The control circuit (1) supplies control pulses (Vd) for switching the power supply. The burst mode is obtained by decreasing the power supply voltage (Vcc) generated for the control circuit (1) to such an extent that, without any further provisions, the control circuit (1) reaches an off-state in which no control pulses (Vd) are generated. In the standby mode, the control circuit (1) is supplied with current by a power supply circuit (4).Type: GrantFiled: April 2, 1996Date of Patent: November 18, 1997Assignee: U.S. Philips CorporationInventors: Antonius A. M. Marinus, Guy L. P. De Bondt, Patrick E. G. Smeets