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| Number | Title | Issue Date |
| 8295054 | Printed circuit board fastening structure A printed circuit board fastening structure aims to fasten a printed circuit board which has a first bearing surface abutting and coupling on a casing and a second bearing surface. The first bearing surface is coupled with at least one support member. The support me... | 10/23/2012 |
| 8274181 | Structure for transmission in power supply A structure for transmission in a power supply, particularly to a power structure for transmission for bearing large DC current, wherein the power supply includes a power input port for connecting to DC input power and a DC/DC conversion circuit for converting the D... | 09/25/2012 |
| 8264821 | Redundant power system transformation structure A transformation structure for a redundant power system which includes at least two power supplies and a first circuit board to cluster the power supplies and deliver output thereof and a second circuit board electrically connected to the first circuit board. The se... | 09/11/2012 |
| 8199463 | Output architecture of power supply An output architecture of a power supply is disclosed, wherein the power supply includes an input portion to obtain input power and a conversion circuit board connecting to the input portion to convert the input power into output power of different voltage potential... | 06/12/2012 |
| 8184455 | Power adapter having power factor correction circuit, switch voltage regulation circuit and voltage stabilization circuit controlled by feedback signal A power adapter to receive at least one AC input power and transform to DC primary output power includes a power factor correction circuit to receive the AC input power and modulate to become a modulated power, an isolation voltage step-down circuit connecting to th... | 05/22/2012 |
| 8139379 | Reverse energy recovery circuit A reverse energy recovery circuit is located on a power conversion circuit equipped with a transformer which has a primary winding side connected to a power switch driven by a control unit. The primary winding side has a first end and a second end bridged by the rev... | 03/20/2012 |
| 8106323 | Potential switching apparatus for power adapter A potential switching apparatus for a power adapter which transforms input power to output power delivered through a power output cord. The potential switch apparatus switches the potential of the output power. It includes a first body and a second body located on t... | 01/31/2012 |
| 8072193 | Phase shift control method for boost converter and circuit implementation A phase shift control method for a boost converter and circuit implementation comprises a master phase and at least one slave phase. A master-phase inductor current flowing through the master phase has a master-phase charge time interval and a master-phase discharge... | 12/06/2011 |
| 8072094 | Active output compensation circuit An active output compensation circuit is adopted for use on a power supply which receives input power and regulates to become a plurality of different output power. The power supply has a transformer to transform the input power. The transformer has a secondary side... | 12/06/2011 |
| 8014173 | Resonant converter for synchronous rectification control A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter ... | 09/06/2011 |
| 8004861 | Parameter configuration method for elements of power factor correction function converter The present invention discloses a parameter configuration method for elements of a PFC function converter. The converter has a PFC circuit modulating an input power into a DC modulated power and a transformer transforming the DC modulated power into an output power.... | 08/23/2011 |
| 7929286 | Redundant power system output structure An output structure for a redundant power system includes at least two power supplies, a first circuit board and a second circuit board. The power supplies and the first circuit board have respectively a first connection port and a second connection port that corres... | 04/19/2011 |
| 7908310 | Multiplier-divider having error offset function A multiplier-divider capable of offsetting errors includes a plurality of multiplication and division units to perform processes and arrangements so that errors generated by signals passing through the multiplier-divider are offset. As a result impact of the errors ... | 03/15/2011 |
| 7907426 | Flyback circuit providing synchronized control A flyback circuit providing synchronized control includes a pulse width modulation (PWM) unit, a synchronized control unit and an ON period limiting unit. The PWM unit generates a driving signal to control a switch ON period of a primary winding and provides a synch... | 03/15/2011 |
| 7869499 | Variable-frequency circuit with a compensation mechanism The present invention discloses a variable-frequency circuit with a compensation mechanism, which comprises: a load sensing/decision unit, a frequency-division unit and a level modulation unit. The present invention applies to a power supply having a frequency-divis... | 01/11/2011 |
| 7764522 | Circuit and method for controlling the start-up cycle of a power supply The present invention discloses a method and a circuit for controlling a start-up cycle of an integrated circuit in a circuit system. The method and circuit determine whether or not an input power of the circuit system and a bias voltage power of the integrated circ... | 07/27/2010 |
| 7394035 | Anti-switch on/off device An anti-switch on/off device mounted on a power supplier, which is used for driving an electronic equipment, is provided for preventing an erroneous touch on the switch of the power supplier to avoid the power supplier from instantly stopping supplying power. The po... | 07/01/2008 |
