Real Time Touch



new TOP 200 Companies filing patents this week

new Companies with the Most Patent Filings (2010+)




Real Time Touch

Leadtrend Technology Corp patents (2017 archive)


Recent patent applications related to Leadtrend Technology Corp. Leadtrend Technology Corp is listed as an Agent/Assignee. Note: Leadtrend Technology Corp may have other listings under different names/spellings. We're not affiliated with Leadtrend Technology Corp, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "L" | Leadtrend Technology Corp-related inventors


Pulse width modulation controller and relevant control method having minimum on time in response to voltage peak of line voltage

A pwm controller in a switching mode power supply provides to a power switch a pwm signal determining an on time and an off time. A peak detector detects a voltage peak of a line voltage generated by rectifying an alternating-current input voltage. ... Leadtrend Technology Corp

Switching-mode power supplies capable of operating at valley switching, and relevant control methods

Control methods and related power controllers diminish audible noise in a power supply capable of performing valley switching. The power supply has an inductive device and a power switch. ... Leadtrend Technology Corp

Synchronous rectifier applied to a power converter and operation method thereof

A synchronous rectifier applied to a power converter includes a power supply module, a control module, and a gate driving unit. The power supply module is used for generating a supply current according to an induced voltage generated from a secondary side of the power converter, wherein the supply current is used for establishing a supply voltage, and the induced voltage corresponds to a control signal of a power switch of a primary side of the power converter. ... Leadtrend Technology Corp

Multi-mode controller applied to a power converter and operation method thereof

A multi-mode controller applied to a power converter includes a detection range generation module and a gate signal generation unit. The detection range generation module is used for generating a comparison voltage according to a reference current, and generating a detection signal according to the comparison voltage and a first reference voltage. ... Leadtrend Technology Corp

Switching mode power supplies with fast load-transient response

A power supply detects a falling rate of an output voltage for fast load-transient response. The power supply with a primary side and a secondary side isolated from each other comprises a primary-side control circuit and a secondary-side control circuit. ... Leadtrend Technology Corp

Method for controlling a dead time of a secondary side of a power converter

A method for controlling a dead time of a secondary side of a power converter includes giving a previous first turning-on time and a current first turning-on time corresponding to a primary side of the power converter, generating a first voltage and a second voltage according to the previous first turning-on time and the current first turning-on time, respectively, generating a current first target voltage according to the first voltage, the second voltage, and an ideal voltage corresponding to a previous ideal second turning-on time of the secondary side, and determining a current second turning-on time of the secondary side according to the current first target voltage and a first ramp voltage corresponding to a current ideal second turning-on time of the secondary side. A difference between the current second turning-on time and the current ideal second turning-on time is a current dead time.. ... Leadtrend Technology Corp

Power control method and related apparatus capable of providing compensation to inductance variation

A power supply control method capable of compensating inductance variation of an inductive device in a power supply. The power supply has a power switch controlling a winding current through the inductive device, and converts an input voltage into an output voltage. ... Leadtrend Technology Corp

Sample-and-hold circuit for generating a variable sample signal of a power converter and method thereof

A sample-and-hold circuit includes a first voltage generation unit, a second voltage generation unit, a stabilization capacitor. The first voltage generation unit generates a first voltage according to a first predetermined delay time and a voltage corresponding to an auxiliary winding of a power converter. ... Leadtrend Technology Corp

Controller for increasing efficiency of a power converter and a related method thereof

A controller for increasing efficiency of a power converter includes a comparison module and a gate signal generation unit. The comparison module is used for generating a detection voltage according to a direct current (dc) input voltage of a primary side of the power converter, and comparing the detection voltage with a predetermined value to generate a comparison result. ... Leadtrend Technology Corp

Synchronous rectifier applied to a power converter and operation method thereof

A synchronous rectifier applied to a power converter includes a gate coupling effect suppressing unit. The gate coupling effect suppressing unit is used for suppressing an induced voltage coupled to a gate of a metal-oxide-semiconductor transistor coupled to a secondary side of the power converter to ensure that the metal-oxide-semiconductor transistor is turned off when the power converter operates in a start-up condition and a power switch of the power converter is turned on. ... Leadtrend Technology Corp

Ripple suppressor

A ripple suppressor suppresses ripples of a channel current. The ripple suppressor comprises a voltage-controlled current source, a stabilizer, and an auto-calibration circuit. ... Leadtrend Technology Corp








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



###

This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Leadtrend Technology Corp in any way and there may be associated servicemarks. This 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 Leadtrend Technology Corp with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

###