Real Time Touch



new TOP 200 Companies filing patents this week

new Companies with the Most Patent Filings (2010+)




Real Time Touch

Joulwatt Technology hangzhou Co Ltd patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "J" | Joulwatt Technology hangzhou Co Ltd-related inventors


Synchronous rectification control circuit, method and flyback switch circuit

The present invention provides a synchronous rectification control circuit, a method and a flyback switching circuit. A drive circuit outputs a drive signal to control the turn-on and turn-off of a synchronous rectification transistor; a threshold comparison circuit controls the drive circuit to output a pull-up drive signal to turn... Joulwatt Technology hangzhou Co Ltd

Integrated circuit with multiplexed pin and pin multiplexing method

The present invention provides an integrated circuit with a multiplexed pin and a pin multiplexing method. The multiplexed pin of the integrated circuit extends out with two connecting ends to receive two logic level signals which are finally restored in a chip. A first signal input end receives a signal... Joulwatt Technology hangzhou Co Ltd

Control method, control circuit and device for switching circuit

The present disclosure relates to a control method, a control circuit and a device for a switching circuit, for solving the problem that a function of fixing a frequency cannot be realized when the switching circuit is operated under CCM and working in a constant on-time control mode or a... Joulwatt Technology hangzhou Co Ltd

Control circuit and control switch circuit and switching-mode power supply circuit

The present invention provides a control circuit and a control method for a switch circuit and a switching-mode power supply circuit. The control method comprises following steps: detecting an output voltage or an output current, and adjusting an upper limit value and a lower limit value of an inductor current... Joulwatt Technology hangzhou Co Ltd

Control method and control circuit for switch circuit and switch circuit device

The present invention provides a control method and a control circuit for a switch circuit and a corresponding switch circuit device. The control circuit comprises: an acquiring module, configured to acquire first time; a comparing module, connected with the acquiring module and configured to compare first time with first fixed... Joulwatt Technology hangzhou Co Ltd

Drive method and drive circuit for power switch, and power supply system

Disclosed a drive method, a drive circuit for a power switch and a power supply system. During the turning-on period of the power switch, which can be roughly divided into three processes, a current limiting module is used to limit the current flowing through the power switch for preventing current... Joulwatt Technology hangzhou Co Ltd

Ripple removing circuit and led control circuit applying the same

A ripple removing circuit and an LED control circuit applying the same are described herein. The LED control circuit receives alternating current input, converts the input into direct current with ripples and supplies power for an LED load. The direct current with ripples is connected to a positive end of... Joulwatt Technology hangzhou Co Ltd

Circuit and overcurrent control and power supply system including the same

The present disclosure relates to a circuit and a method for overcurrent control and a power supply system including the same. When the system operates normally, a reference voltage has a constant value. When a short circuit or an overcurrent occurs at an output of the system, the reference voltage... Joulwatt Technology hangzhou Co Ltd

Switch control circuit and switch circuit

This invention provides a switch control circuit and a switch circuit. When a main transistor on-time reaches a constant on-time, whether an inductor current reaches an instruction current is detected; if the inductor current fails to reach the instruction current, the main transistor on-time is prolonged; the main transistor is... Joulwatt Technology hangzhou Co Ltd

Circuit and detecting current zero-crossing point, and circuit and detecting load voltage

A circuit and a method for detecting a current zero-crossing point, and a circuit and method for detecting a load voltage are disclosed. The circuit for detecting current zero-crossing point includes: a load power supply circuit (14), a voltage-dividing resistor (16), a transistor switch (15), a zero-crossing detection circuit (19);... Joulwatt Technology hangzhou Co Ltd

Power supply protection circuit and method

A power supply protection circuit and a method is described herein. The power supply protection circuit comprises a current control unit, a voltage feedback unit, and a current pull-up unit. The voltage feedback unit is connected to the current control unit, the voltage feedback unit obtains a feedback voltage of... Joulwatt Technology hangzhou Co Ltd

Self-adaption current control circuit

A self-adaption current control circuit includes: a regulating transistor, a first sampling comparison circuit, a proportion control circuit, a variable sampling resistor, and a second sampling comparison circuit. The self-adaption current control circuit adjusts the resistance value of the variable sampling resistor and the coefficient of the proportion circuit simultaneously... Joulwatt Technology hangzhou Co Ltd

Circuit for increasing buck output voltage

A circuit includes a power supply end, a switching tube and a first loop connected to the power supply end in order, a second loop, and a load. The power supply end provides an input voltage for the circuit through a positive busbar and a negative busbar. The first loop... Joulwatt Technology hangzhou Co Ltd








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 Joulwatt Technology hangzhou Co Ltd 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 Joulwatt Technology hangzhou Co Ltd with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

###