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Synchronous Rectifier Controller

Synchronous Rectifier Controller-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Efficient power supply voltage regulation for synchronous rectifier controller
Dialog Semiconductor Inc.
March 01, 2018 - N°20180062530

A flyback converter is provided with a synchronous rectifier (sr) controller including a pulse linear regulator (plr) charging path and an ldo charging path. The sr controller is configured to monitor the switching period and/or duty cycle of a power switch in the flyback converter to select between the plr and ldo charging paths.
Method and apparatus for synchronous rectifier
Semiconductor Components Industries, Llc
February 22, 2018 - N°20180054132

A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In ...
Adaptive synchronous rectifier control
Dialog Semiconductor Inc.
March 02, 2017 - N°20170063246

A switching power converter may include a power switch coupled to a primary winding of a transformer, and a primary controller configured to turn on and off the power switch, a synchronous rectifier switch coupled to a secondary winding of a transformer, and a synchronous rectifier controller configured to turn on and off the synchronous rectifier switch. The synchronous rectifier ...
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Insulation-type synchronous dc/dc converter
Rohm Co., Ltd.
November 24, 2016 - N°20160344299

A synchronous rectifier controller is provided on a secondary side of an insulation-type synchronous dc/dc converter and controls the synchronous rectifier transistor. A driver circuit controls the synchronous rectifier transistor. A photo coupler connection terminal is coupled to an input side of the photo coupler. An error amplifier amplifies an error between a voltage detection signal according to an ...
Insulation-type synchronous dc/dc converter
Rohm Co., Ltd.
March 10, 2016 - N°20160072399

The synchronous rectifier controller is provided at the secondary side of the insulation-type synchronous dc/dc converter and controls the synchronous rectifier transistor. The controller is coupled to the output of the feedback photo coupler and drives the switching transistor according to the feedback signal. The synchronous rectifier controller includes a driver circuit and an abnormal detection circuit and is ...
Insulation-type synchronous dc/dc converter
Rohm Co., Ltd.
February 04, 2016 - N°20160036339

Asynchronous rectifier controller is provided on a secondary side of an insulation-type synchronous dc/dc converter and controls the synchronous rectifier transistor. A driver circuit controls the synchronous rectifier transistor. A photo coupler connection terminal is coupled to an input side of the photo coupler. An error amplifier amplifies an error between a voltage detection signal according to an output ...
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Method and apparatus for synchronous rectifier operation
Semiconductor Components Industries, Llc
November 05, 2015 - N°20150318790

A method and synchronous rectifier controller uses minimum off and on time blanking to avoid switching the switching transistor at incorrect times responsive to transients in the current sense signal. The minimum off time timer is commenced only when the current sense signal is above a reset threshold, and is reset when the current sense voltage falls below the reset ...
Synchronous rectifier controller
Nxp B.v.
May 28, 2015 - N°20150146457

Consistent with an example embodiment, a synchronous rectifier controller for a switched mode power supply comprises a transformer with a secondary side winding and a synchronous rectifier transistor with a gate, a source and a drain; the source and drain provide a conduction channel coupled to the secondary side winding. The controller comprises an input terminal for receiving an input ...
Reducing power consumption of a synchronous rectifier controller
Dialog Semiconductor Inc.
May 07, 2015 - N°20150124495

The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose techniques for reducing power consumption of a synchronous rectifier controller of the switched mode power converter. The switched mode power converter includes a plurality of circuit components that control operation of a synchronous rectifier included in the switched mode power converter. One or more of ...
Adaptive synchronous rectifier control
Iwatt Inc.
May 07, 2015 - N°20150124494

The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose techniques for adaptive synchronous rectification control. The switched mode power supply includes a synchronous rectifier controller that determines when to turn off the synchronous rectifier during each switching cycle based on a reference signal corresponding to when substantially all the power stored in a transformer ...
Powering a synchronous rectifier controller
September 18, 2014 - N°20140268915

The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose a method for powering a synchronous rectifier controller that enables synchronous rectification in the switched mode power converter. The synchronous rectifier controller may be enabled by a regulator circuit or directly from the output voltage.
Method of forming a synchronous rectifier controller and structure therefor
July 10, 2014 - N°20140192575

In one embodiment, a synchronous rectifier controller is configured to initiate forming an off-time interval for a first period of time responsively to the controller forming a disable state of a switching signal wherein the control circuit maintains the switching signal in the disable state for at least the off-time interval. The controller is also configured to restart forming the ...
Power converting device
April 24, 2014 - N°20140112027

A power converting device includes a transformer, a first switch coupled to a primary winding of the transformer, a pwm controller which generates a first pwm signal for controlling conduction and non-conduction of the first switch and which generates a control signal that leads the first pwm signal, a rectifier-filter circuit which rectifies an induced voltage generated by a secondary ...
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