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Switched Mode Power Supply

Switched Mode Power Supply-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Reference voltage generator for a switched mode power supply
Telefonaktiebolaget L M Ericsson (publ)
February 15, 2018 - N°20180048235

An isolated fly-buck converter is provided for converting an input voltage to an output voltage, and for generating a voltage indicative of the input voltage. The isolated fly-buck converter comprises on its secondary side an input voltage sensing circuit for generating the voltage indicative of the input voltage, the input voltage sensing circuit comprising a capacitive element and a rectifying ...
Controlled adaptive power limiter
Microchip Technology Incorporated
January 25, 2018 - N°20180026534

A power limiter for a switched mode power supply includes an operational amplifier and a comparator circuit. The operational amplifier is configured to receive an input voltage supplied to the smps as a first input and a reference voltage as a second input. The comparator circuit is configured to receive an output of the operational amplifier, receive a current sense ...
Welding power supplies having adjustable current ramping rates
Illinois Tool Works Inc.
January 25, 2018 - N°20180021872

Welding power supplies having adjustable current ramping rates are disclosed. An example welding power supply, comprising: a switched mode power supply to convert primary power to welding-type power having an output current based on a current control loop; a voltage sensing circuit to measure a weld voltage; a voltage comparator to determine whether the weld voltage corresponds to a welding ...
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Control unit for a led assembly and lighting system
Eldolab Holding B.v.
November 09, 2017 - N°20170325296

A control unit for a led assembly includes a first and second led unit, the led units being serial connected. The led assembly, in use, is powered by a switched mode power supply. The control unit being arranged to receive an input signal representing a desired output characteristic of the led assembly, determine a first and second duty cycle for ...
Switched mode power supply control
November 02, 2017 - N°20170317586

An illustrative example embodiment of a method is for controlling a switch. The switch is used to charge a capacitor that provides an output voltage. The switch has an inductor on an input side between a power source and the switch. The method includes: initiating a switching cycle including turning on the switch, sensing a voltage representing current through the ...
Variable power energy harvesting system
October 19, 2017 - N°20170302102

The disclosed invention provides examples of preferred embodiments including systems for harvesting energy from variable output energy harvesting apparatus. The systems include energy harvesting apparatus for providing energy input to a switched mode power supply and a control loop for dynamically adjusting energy harvesting apparatus input to the switched mode power supply, whereby system output power is substantially optimized to ...
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Systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply ...
Texas Instruments Incorporated
September 07, 2017 - N°20170257029

Example embodiments of the systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply based on measured dynamic response disclosed herein rely on time domain measurements for the tuning rather than on frequency response to automatically tune the system for stability and good dynamic performance. In particular, an algorithm directly measures overshoot and settling time ...
Multi-output regulator with joint feedback
Viasat, Inc.
August 24, 2017 - N°20170244326

A multi-output switched mode power supply may include a power circuit and a controller to control the power circuit. A combiner circuit may produce a single feedback signal based on the regulated output voltages produced by the switched mode power supply.
Thd in off-line converters
Semiconductor Components Industries, Llc
August 10, 2017 - N°20170229957

A switched mode power supply (smps) receives an input voltage selectively connects and disconnects the input voltage from an inductor. The smps generates a charge in the inductor during a duty cycle portion while the input voltage is connected by generating control signals for selectively connecting to and disconnecting the input voltage from the inductor. Generating the control signals includes ...
Envelope tracking modulator with feedback
Snaptrack, Inc.
July 06, 2017 - N°20170194915

There is disclosed an envelope tracking modulated supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a low frequency path for tracking low frequency variations in the reference signal and including a switched mode power supply, a correction path for tracking high frequency variations in the reference signal and including a linear amplifier, a ...
Switched mode power supply converter
Semiconductor Components Industries, Llc
June 22, 2017 - N°20170179825

A method and apparatus for switched mode power supply (smps) system includes circuitry configured to produce a voltage output based on an input voltage, the smps circuitry includes inductive, capacitive and switching elements configured to generate the voltage output. The switching elements include at least one set of cascode coupled devices, each set of cascode coupled devices including a high ...
Isolated buck converter, switched mode power supply, and method of transferring digital data from a ...
Telefonaktiebolaget Lm Ericsson (publ)
June 15, 2017 - N°20170170741

An isolated buck converter for converting an analog input voltage to an analog output voltage is capable of transferring digital data from the primary side to the secondary side. The converter comprises, on a primary side, a primary winding and a non-isolated buck connected in series, and a pair of switches switchable between a forward phase and a fly-buck phase. ...
Switched mode power supply compensation loop
Telefonaktiebolaget Lm Ericsson (publ)
June 08, 2017 - N°20170163142

There is provided a controller for controlling an output current of a switched mode power supply, smps. The controller comprises a sampling module arranged to sample a signal indicative of the output current of the smps at a frequency higher than a switching frequency of the smps, and a filter module arranged to filter out a ripple component of the ...
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Electromagnetic flow sensor interface allowing differential dc coupling
June 01, 2017 - N°20170153135

An interface circuit to an electromagnetic flow sensor is described. In an example, it can provide a dc coupled signal path from the electromagnetic flow sensor to an analog-to-digital converter (adc) circuit. Examples with differential and pseudo-differential signal paths are described. Examples providing dc offset or low frequency noise compensation or cancellation are described. High input impedance examples are described. ...
Electromagnetic flow sensor interface allowing dc coupling
June 01, 2017 - N°20170153134

An interface circuit to an electromagnetic flow sensor is described. In an example, it can provide a dc coupled signal path from the electromagnetic flow sensor to an analog-to-digital converter (adc) circuit. Examples with differential and pseudo-differential signal paths are described. Examples providing dc offset or low frequency noise compensation or cancellation are described. High input impedance examples are described. ...
Systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply ...
May 25, 2017 - N°20170149335

Example embodiments of the systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply based on measured dynamic response disclosed herein rely on time domain measurements for the tuning rather than on frequency response to automatically tune the system for stability and good dynamic performance. In particular, an algorithm directly measures overshoot and settling time ...
Converter with hysteretic control
Microsemi Corporation
May 18, 2017 - N°20170141685

A hysteretic power converter constituted of: a switched mode power supply comprising an inductor, an electronically controlled switch and an output capacitor, the switch arranged to alternately open and close a loop with the inductor and a power source; a hysteretic comparator, a first input coupled to a feedback connection and arranged to receive from the feedback connection a feedback ...
Switched mode power supply circuit
Mediatek Inc.
March 16, 2017 - N°20170077813

An smps (switched mode power supply) circuit includes a first switch element, a second switch element, an inductor, a capacitor, a current sensor, a current comparator, and a controller. The first switch element is coupled between a first power node and a switch node. The second switch element is coupled between the switch node and a second power node. The ...
Switched mode power supply driver integrated with a power transmission antenna
Philips Lighting Holding B.v.
February 16, 2017 - N°20170048937

A driver comprising a switched mode power supply, wherein said switched mode power supply comprises an existing coil, the driver circuit further comprises: a first power transmission antenna (42) formed as a first coil which is either the existing coil of the switched mode power supply or coupled to the existing coil of the switched mode power supply, said first power ...
Power supply for led lamp with triac dimmer
Bcd Semiconductor Manufacturing Limited
January 26, 2017 - N°20170027029

A bleeder circuit is provided in a switched mode power supply (smps) that provides a compensation current when the loop current drops below the holding current of the triac to alleviate light flickering problem. Further, automatic power factor correction is also provided in embodiments of the invention, which enables the output current to be in phase with the input voltage. ...
Hvac components having a variable speed drive with optimized power factor correction
Trane International Inc.
December 15, 2016 - N°20160365817

A power factor optimized variable speed drive unit for an electric motor of an hvac device is disclosed. In an embodiment, the unit includes a selectively-activatable power factor correction unit operatively associated with a switched mode power supply unit. A power measurement unit measures the input power of the electric motor. A comparator unit compares the motor input power to ...
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