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Synchronous Rectifier Controller patents

      

This page is updated frequently with new Synchronous Rectifier Controller-related patent applications.




 Adaptive synchronous rectifier control patent thumbnailAdaptive synchronous rectifier control
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 controller may monitor a voltage across the synchronous rectifier switch.
Dialog Semiconductor Inc.


 Dead time compensation for synchronous rectifiers in adaptive output powers patent thumbnailDead time compensation for synchronous rectifiers in adaptive output powers
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.
Fairchild (taiwan) Corporation


 Insulation-type synchronous dc/dc converter patent thumbnailInsulation-type synchronous dc/dc converter
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.
Rohm Co., Ltd.


 Insulation-type synchronous dc/dc converter patent thumbnailInsulation-type synchronous dc/dc converter
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.
Rohm Co., Ltd.


 Insulation-type synchronous dc/dc converter patent thumbnailInsulation-type synchronous dc/dc converter
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.
Rohm Co., Ltd.


 Synchronous rectification patent thumbnailSynchronous rectification
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 allow the synchronous rectifier to conduct current of the secondary winding; and a linear amplifier having an output to sink current from the control terminal dependent on a difference between a voltage across the synchronous rectifier and an amplifier reference value, said voltage across the synchronous rectifier being a voltage across a controllable conduction path for current of the secondary winding, the linear amplifier to inhibit discharge of the control terminal from the voltage beyond the threshold voltage until the voltage across the synchronous rectifier reaches the amplifier reference value..
Power Integrations Limited


 Method and  synchronous rectifier operation patent thumbnailMethod and synchronous rectifier operation
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 threshold.
Semiconductor Components Industries, Llc


 Synchronous rectifier controller patent thumbnailSynchronous rectifier controller
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 signal related to a voltage at the drain, an output terminal configured to provide an output signal for setting a logic state of the gate, and circuitry having a first threshold and a second threshold.
Nxp B.v.


 Reducing power consumption of a synchronous rectifier controller patent thumbnailReducing power consumption of a synchronous rectifier controller
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.
Dialog Semiconductor Inc.


 Adaptive synchronous rectifier control patent thumbnailAdaptive synchronous rectifier control
The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose techniques for adaptive synchronous rectification control.
Iwatt Inc.


Powering a synchronous rectifier controller

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.

Method of forming a synchronous rectifier controller and structure therefor

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 off-time interval responsively to a voltage of a synchronous rectifier becoming a first value prior to expiration of the first period of time..

Power converting device

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 winding of the transformer, a second switch coupled to the secondary winding, and a synchronous rectifier controller which controls conduction and non-conduction of the second switch, and which controls, according to the control signal, the second switch to become non-conductive prior to conduction of the first switch.. .

Synchronous rectifier controller, power converter using same, and method therefor

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 drive terminal at a voltage related to the clamp voltage during an active period of the drive signal. In an alternate form a power converter includes a rectifier transistor having a first current electrode, a control electrode for receiving a drive signal, and a second current electrode, and a synchronous rectifier controller having a first terminal coupled to the control electrode of the rectifier transistor for providing the drive signal alternately in an active state and an inactive state..





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This listing is a sample listing of patent applications related to Synchronous Rectifier Controller for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Synchronous Rectifier Controller with additional patents listed. Browse our RSS directory or Search for other possible listings.


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