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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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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 ...
Dead time compensation for synchronous rectifiers in adaptive output powers
Fairchild (taiwan) Corporation
December 22, 2016 - N°20160373019

A synchronous rectifier controller for an adaptive output power converter is provided. The synchronous rectifier controller includes a voltage detection circuit, a threshold generation circuit, and a driver. The voltage detection circuit detects an output voltage of the adaptive output power converter to generate a detection signal. The threshold generation circuit is coupled to the voltage detection circuit. The threshold ...
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 ...
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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 ...
Synchronous rectification
Power Integrations Limited
December 03, 2015 - N°20150349652

This invention generally relates to synchronous rectifier controllers for an smps. One controller comprises: a sensor to sense a signal on a secondary side, to detect turn off of the switch; a charge source to, in response to a said detection, charge a control terminal of the rectifier to a voltage beyond a threshold voltage of the synchronous rectifier to ...
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 ...
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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
Iwatt Inc.
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
Iwatt Inc.
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
Iwatt Inc.
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 ...
Synchronous rectifier controller, power converter using same, and method therefor
Iwatt Inc.
March 27, 2014 - N°20140085952

In one form, a synchronous rectifier controller includes a drive clamp adjust terminal, a drive terminal, a clamp voltage generator circuit coupled to the drive clamp adjust terminal for measuring a signal at the drive clamp adjust terminal and providing a clamp voltage having a value determined by the signal, and a driver for providing a drive signal to the ...
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