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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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Fast transient response circuit
Microchip Technology Incorporated
August 09, 2018 - N°20180226875

A circuit includes a reference voltage, a switched mode power supply (smps) loop filter circuit configured to provide an inductor current limit based on the reference voltage, and a trigger circuit configured to enable or disable the smps loop filter circuit. When the smps loop filter circuit is enabled, an output of the circuit is based on output of the ...
Dual stage vcc charging for switched mode power supply
Dialog Semiconductor Inc.
July 19, 2018 - N°20180205312

A startup circuit is provided for establishing the vcc voltage level of a switching power converter. The startup circuit uses a switch controller and path switching transistor to provide a two-stage vcc capacitor charging that reduces startup time while avoiding short circuit damage through the alternate usage of a high impedance charging path and a low-impedance charging path..
Switched mode power supply compensation loop
Telefonaktiebolaget Lm Ericsson (publ)
July 19, 2018 - N°20180205308

A controller includes a sampling module that samples a signal indicative of the output voltage, a filter module that filters out a ripple component of a sampled signal to generate a filtered signal, and a proportional-integral-derivative (paid) controller that generates a duty cycle control signal. The paid controller includes a first component that scales sample values of the filtered signal ...
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Active clamp circuit for switched mode power supplies
Nxp B.v.
June 28, 2018 - N°20180183346

Switched mode power supply (smps) with at least one active clamp circuit and method of operating such a smps are described. The active claim circuit utilizes a clamp switch, a zener diode and a clamp capacitor that are connected in series between one side of a particular winding of a transformer and the other side of the particular winding of ...
Switched mode power supply with reduced delay time
Nxp B.v.
June 28, 2018 - N°20180183342

Switched mode power supply (smps) with a control circuitry and method of operating such a smps are described. The control circuitry includes a first driver to drive an input switch in response to a driving signal, a pulse circuit to generate a pulse signal in response to the driving signal, a timer circuit to generate a delayed signal in response ...
Auxiliary supply for a switched-mode power supply
Siemens Aktiengesellschaft
June 07, 2018 - N°20180159429

An auxiliary supply for a switched mode power supply, which includes at least a transformer with a primary side and a secondary side, wherein the auxiliary supply provides a power supply to units arranged on the secondary side of the switched mode power supply independently of an operating state of the switched mode power supply, where the auxiliary supply in ...
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Switched mode power supply with dynamic frequency foldback
Semiconductor Components Industries, Llc
April 12, 2018 - N°20180102709

In one form, a switched mode power supply controller with frequency foldback includes a pulse width modulator responsive to a clock signal to generate a drive signal having a pulse width that varies in response to a feedback signal, and a variable frequency oscillator having a first input for receiving the feedback signal, a control input for receiving a programmable ...
Switched mode power supply
Telefonaktiebolaget Lm Ericsson (publ)
March 08, 2018 - N°20180069476

A switched mode power supply comprises a control signal generator arranged to generate first and second control signals via first and second outputs, respectively, which are coupled to respective first and second inputs of a switching stage, by means of respective first and second control signal paths. The switching stage is arranged to, responsive to the first and second control ...
Electromagnetic interference blocking system
Dialog Semiconductor Inc.
March 01, 2018 - N°20180062404

An apparatus and method for blocking electromagnetic interference, emi is presented. In particular, the present invention relates to a switched mode power supply provided with an electromagnetic interference protection circuit with low power dissipation.
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.
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 ...
Control unit for a led assembly and lighting system
Eldolab Holding B.v.
December 21, 2017 - N°20170367159

A control unit for an led assembly comprising a first and second led unit, said led units being serial connected is described. The led assembly, in use, is powered by a switched mode power supply.
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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.
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 ...
Switched mode power supply compensation loop
Telefonaktiebolaget Lm Ericsson (publ)
September 14, 2017 - N°20170264185

A controller, and related method, configured to generate a duty cycle control signal for controlling an output voltage of a switched mode power supply as a function of a reference signal. In one embodiment, the controller is configured to sample a signal indicative of the output voltage to generate a first sampled signal, filter out a ripple component of the ...
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.
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 ...
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