公开(公告)号：US09762131B1

公开(公告)日：2017-09-12

申请号：US15161315

申请日：2016-05-23

Applicant: INNO-TECH CO., LTD.

Inventor： Chih-Liang Wang ,  Ching-Sheng Yu ,  Wen-Yen Pen

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M1/08 ,  H02M1/36 ,  H02M2001/0006 ,  H02M2001/0009

Abstract: Disclosed is an Auxiliary-Free High-Side Driven Secondary-Side Regulated (AF-HSD-SSR) flyback converter, which includes an AC-to-DC rectification unit, an input capacitor, a switching unit, a current-sensing resistor, an Auxiliary-Free (AF) flyback transformer, an output rectifier, an output capacitor, a PWM controller, and a SSR unit. The AF flyback transformer includes a primary winding and a secondary winding, where the primary winding is split into two halves. The switching unit is placed at the high side of the primary winding, and the PWM controller in collocation with the SSR unit drives the switching unit in response to all the required voltage and current sense signals to keep voltage conversion and power delivery safe and efficient within the specifications. The first half of the primary winding can provide the PWM controller with a continuous and steady working voltage supply after startup, thus eliminating the need for the auxiliary winding.

公开(公告)号：US09742293B2

公开(公告)日：2017-08-22

申请号：US15224719

申请日：2016-08-01

Applicant: INNO-TECH CO., LTD.

Inventor： Shu-Chia Lin ,  Chih-Liang Wang ,  Ching-Sheng Yu

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M2001/0009

Abstract: A power supply and a method of power supplying for converting an external alternating power into an output power with appropriate voltage and power are disclosed. The power supply includes an input charging unit, an input filtering unit, a regulating unit, a transformer, a controller, an output unit, an output capacitor, a switching unit and a feedback unit. The regulating unit is connected to the input filtering unit and comprises a regulating capacitor and a regulator connected in series. The regulator is controlled by the controller to perform one of the working modes including initial open circuit, power on conduction, short circuit normal operation and over-voltage open circuit protection. Therefore, the present invention overcomes the problem of inrush current upon powering on, and particularly, the controller performs digital operation with flexibility to meet actual requirements by updating appropriate firmware of software program.

公开(公告)号：US09837914B1

公开(公告)日：2017-12-05

申请号：US15487468

申请日：2017-04-14

Applicant: INNO-TECH CO., LTD.

Inventor： Chih-Liang Wang ,  Ching-Sheng Yu ,  Wen-Yen Pen

IPC: H02M3/335 ,  H02H7/125

CPC classification number: H02H7/125 ,  H02M1/4258

Abstract: Disclosed is a method of dynamical adjustment for a power supply. The method takes aim at lowering the minimum bulk capacitor voltage to the maximum extent through increasing the switching frequency or the OCP (Over-Current Protection) trip point during the holdup time so that the holdup time can get prolonged or the bulk capacitor can get downsized provided that all other parameters remain unchanged. In general, the proposed method is applicable to a wide variety of power converters.

公开(公告)号：US20170214323A1

公开(公告)日：2017-07-27

申请号：US15224719

申请日：2016-08-01

Applicant: INNO-TECH CO., LTD.

Inventor： Shu-Chia Lin ,  Chih-Liang Wang ,  Ching-Sheng Yu

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M2001/0009

Abstract: A power supply and a method of power supplying for converting an external alternating power into an output power with appropriate voltage and power are disclosed. The power supply includes an input charging unit, an input filtering unit, a regulating unit, a transformer, a controller, an output unit, an output capacitor, a switching unit and a feedback unit. The regulating unit is connected to the input filtering unit and comprises a regulating capacitor and a regulator connected in series. The regulator is controlled by the controller to perform one of the working modes including initial open circuit, power on conduction, short circuit normal operation and over-voltage open circuit protection. Therefore, the present invention overcomes the problem of inrush current upon powering on, and particularly, the controller performs digital operation with flexibility to meet actual requirements by updating appropriate firmware of software program.