Patents Assigned to Delta Electronics
  • METHOD OF COMPILING MACHINE CODE PROGRAM FOR PROGRAMMABLE LOGIC CONTROLLER
    Publication number: 20090083719
    Abstract: A method of compiling machine code program for programmable logic controller (PLC) reads a PLC program such as a ladder diagram program. The mnemonics codes in the PLC program are searched and checked with syntax correctness regarding PLC logic rule. When all of the mnemonics codes have correct syntax, the PLC program is converted to a C language program and the C language program is then converted into a C language object program. The C language object program is linked with a library file. When the link is successful, the linked program is directly converted into a machine language program for operation of PLC to access external input/output points (EXIO).
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Applicant: Delta Electronics, Inc.
    Inventor: Po-Cheng HSIEH
  • Heat-dissipating mechanism for a motor
    Patent number: 7507068
    Abstract: A heat-dissipating mechanism for a motor includes a rotor and a stator base. The rotor rotates with respect to the stator base and includes a casing and a hub. The casing has a side portion and a bottom portion, and at least one opening is disposed at the bottom portion. The hub is disposed on the casing, for preventing an external particle from entering the rotor. The hub includes a plurality of separation ribs and when the hub is disposed on the casing, a heat-dissipating passage is formed between every two adjacent separation ribs and the side portion of the casing.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 24, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-Chih Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • UNINTERRUPTIBLE POWER SUPPLY SYSTEM AND CONTROLLING METHOD THEREOF
    Publication number: 20090072623
    Abstract: A controlling method of uninterruptible power supply system comprising a first UPS and a second UPS for continuously providing power to a load is disclosed. The controlling method includes the steps of (a) determining if the first UPS is normal; (b) providing power to the load via the first UPS when the first UPS is normal and determining if the second UPS is normal when the first UPS is abnormal; and (c) providing power to the load through the second UPS when the second UPS is normal and providing the power to the load through a bypass route when the first UPS and the second UPS are both abnormal.
    Type: Application
    Filed: January 4, 2008
    Publication date: March 19, 2009
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Jen-Chuan Liao
  • Electronic device having foldable plug
    Patent number: 7503779
    Abstract: An electronic device includes a casing, a plug, a retaining element and a resilient element. The casing has multiple support members and multiple receiving parts. The plug has a rotating shaft and multiple pins. The rotating shaft includes a ratchet tenon and is pivotally supported on the support members. The pins are substantially perpendicular to the casing when the pins are rotated to the first position. The pins are received in the receiving parts of the casing when the pins are rotated to the second position. The retaining element includes a ratchet part. The resilient element is contacted with or sustained against the retaining element for providing a restoring force on the retaining element. The ratchet part is engaged with the ratchet tenon of the rotating shaft due to the restoring force, so that the pins are automatically fixed in either the first position or the second position.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 17, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Ming-Tang Yang, Chun-Chen Chen
  • Heat sink fastening device and assembling process thereof
    Patent number: 7505274
    Abstract: A heat sink fastening device is used for facilitating fixing a heat sink on a circuit board. The heat sink fastening device includes a first connecting portion, a second connecting portion and at least a connecting member. The first connecting portion is included in the circuit board. The second connecting portion is included in the heat sink. The connecting member is disposed on a first surface of the circuit board and includes a first connecting part and a second connecting part. The first connecting part is coupled to the first connecting portion of the circuit board and the second connecting part is coupled to the second connecting portion of the heat sink, thereby facilitating fixing the heat sink on the first surface of the circuit board.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: March 17, 2009
    Assignee: Delta Electronics, Inc.
    Inventor: Wen-Lung Yu
  • Power adapter having detachable power cable coupler head
    Patent number: 7503809
    Abstract: A power adapter includes a main body, a locking member and a power cable coupler head. The main body includes an opening. The locking member is arranged on the main body and includes a perforation, which is communicated with the opening. The power cable coupler head is rotatably and detachably connected to the locking member such that a portion of the power cable coupler head is penetrated through the perforation and the opening to be coupled with the main body.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: March 17, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Chung-Ju Tsai, Chien-Hua Chiao
  • Light guide method of double-layer light guide plate and keypad structure using the double-layer light guide plate
    Patent number: 7503683
    Abstract: A keypad structure includes a circuit board, a reflecting plate, a second light guide plate, a second light guide plate, a shading strip, a first light guide plate, an elastic layer, a keypad module and a light source module. A shading strip is provided for attaching the second light guide plate to the first light guide plate. A hole at an overlapped position of the first and second light guide plates is provided for exposing the first light guide plate. A light emitting element of the second light guide plate is lit to project a single-color light onto a corresponding keypad. When the light emitting element of the first light guide plate is lit, different color lights are produced, such that a light transmission effect of single-color light or mixed multiple-color light occurs at the surface of the keypad corresponding to the first light guide plate.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 17, 2009
    Assignee: Delta Electronics, Inc.
    Inventor: Chang-Li Liu
  • Transformer Structure
    Publication number: 20090066459
    Abstract: A transformer structure is provided. The transformer structure comprises at least one first winding frame, at least one second winding frame, a plurality of primary coil assemblies which are wound around the at least one first winding frame, a plurality of secondary coil assemblies which are wound around the at least one secondary winding frame, and an iron core assembly which is placed in the jacks of the at least one first winding frame and the at least one second winding frame. The at least one first winding frame has a plurality of primary coil areas, around which the primary coil assemblies are wound. The at least one second winding frame has a plurality of secondary coil areas, around which the secondary coil assemblies are wound.
    Type: Application
    Filed: February 11, 2008
    Publication date: March 12, 2009
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Lee Huang Chih
  • Multi-output DC-DC converter
    Patent number: 7501715
    Abstract: A multi-output DC-DC converter is advantageous over the conventional multi-output DC-DC converter in terms of increased power efficiency and power density. The inventive multi-output DC-DC converter is characterized by that the rectifying circuit located at the output stage of the DC-DC converter is implemented by a pair of self-driven synchronous rectifier transistors that can prevent a reverse current from flowing through the switch elements of the DC-DC converter. Also, a plurality of post voltage regulators are tapped to a secondary winding of the DC-DC converter, in which each post voltage regulator includes a voltage level shifter circuit for allowing gate drivers to impose a small amount of dead time on the control pulse signals for driving the internal transistor switches to minimize the dead time loss occurred during power conversion operation.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: March 10, 2009
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company, Limited
    Inventors: Sakda Saeueng, Mingchun Xu, Weng Leong Hon
  • ELECTRONIC DEVICE HAVING FOLDABLE PLUG
    Publication number: 20090061666
    Abstract: An electronic device includes a casing, a plug, a fixing plate, a circuit board and a first retaining part. The casing has a support member and multiple perforations. The plug has a rotating shaft and multiple pins. The pins are mounted on the rotating shaft. The rotating shaft is pivotally supported on the support member such that the pins are rotatable with respect to the rotating shaft. The pins are substantially perpendicular to the casing when the pins are rotated to a first position. The pins are received in the perforations when the pins are rotated to a second position. The fixing plate is disposed on the support member. The circuit board includes multiple contact elements corresponding to the pins. The first retaining part is engaged with or sustained against an engaging part of the rotating shaft, thereby positioning the pins of the plug in the first position.
    Type: Application
    Filed: March 17, 2008
    Publication date: March 5, 2009
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Wen-Lung Yu
  • Foldable electrical connector and power supply apparatus having same
    Patent number: 7497707
    Abstract: A power supply apparatus includes a main body, a first power connecting part and a foldable electrical connector. The main body includes a power converting circuit therein and has a first socket at a first side thereof. The first power connecting part has an end connected to the main body. The foldable electrical connector includes a housing and at least a conductive pin. The housing includes a connecting member and a receiving portion. The connecting member is electrically connected to the first socket of the main body. The conductive pin is disposed in the receiving portion and multi-angularly rotatable with respect to the housing so as to be selectively stored in the receiving portion or protruded from the housing.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: March 3, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Ching Wu, Ya-Hui Chen
  • Video device with voice-assisted system
    Patent number: 7499859
    Abstract: A video device with a voice-assisted system is provided by using a voice command to adjust the images. The voice-assisted system includes a voice recognition engine and a control unit. The voice recognition engine receives a voice command and outputting a voice signal based on the voice command to the control unit. The control unit based on the voice signal performs the adjustment actions to adjust image. The user only requires inputting a single voice command. The voice recognition engine then can perform a series of actions to adjust image. Therefore, the voice-assisted system can enhance the convenience of adjusting the image of the video device and reduce the operation complexity for the user.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: March 3, 2009
    Assignee: DELTA Electronics, Inc.
    Inventors: Yuan-Chia Lu, Liang-Sheng Huang, Jia-Lin Shen
  • Rotor
    Patent number: 7498705
    Abstract: A rotor. The rotor includes a case, a reinforcing part, a shaft and a connecting element. The reinforcing part is formed with the case and defines an opening. The shaft extends into the opening. The connecting element connects the case and the shaft, with the reinforcing part disposed inside.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: March 3, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Shih-Kai Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Heat-dissipating device
    Patent number: 7497659
    Abstract: A heat-dissipating device includes a housing having an air inlet and an air outlet, and a rotor disposed in the housing and having a first set of blades, wherein the housing has a sidewall extending inward from the air inlet to define an air-gathering chamber in the housing, and a plurality of air-guiding members disposed along the sidewall for increasing and stabilizing a blast pressure of airflow passing through the heat-dissipating device.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: March 3, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Wei-Chun Hsu, Shun-Chen Chang, Wen-Shi Huang, Hsiou-Chen Chang
  • STACKABLE COMPOSITE POWER CONNECTOR
    Publication number: 20090053937
    Abstract: The present invention relates to a composite power connector. The composite power connector includes multiple first connecting units arranged in a stack form, multiple second connecting units arranged in a stack form and a fastening element. Each first connecting unit includes a first end coupled with an electric wire, a second end formed as an insertion terminal to be coupled with a corresponding second connecting unit, a first surface having a first perforation and a second surface having a second perforation corresponding to the first perforation. A channel is defined by the first perforation and the second perforation. The fastening element penetrates through the channels of the multiple first connecting units for combining and fixing the multiple first connecting units with each other.
    Type: Application
    Filed: February 20, 2008
    Publication date: February 26, 2009
    Applicant: Delta Electronics, Inc.
    Inventors: Yung-Hung Tsou, Tung-Hung Hsieh
  • Active heat-dissipating type of power supply apparatus having heat-dissipating mechanism for power input device
    Patent number: 7495911
    Abstract: An active heat-dissipating type of power supply apparatus includes a casing, a first airflow channel, a second airflow channel, plural electronic components, an airflow driving device and a power input device. The casing includes at least one first airflow opening. The first airflow opening is communicated with the second airflow channel. The electronic components are disposed in the first airflow channel. The airflow driving device includes an airflow gate. The power input device is disposed on the first side of the casing and in the second airflow channel. A cooling air is pumped by the airflow driving device to be introduced into the second airflow channel through one of the first airflow opening and the airflow gate, so that the heat generated from the power input device is exhausted through the other one of the first airflow opening and the airflow gate.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: February 24, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Chih-Jen Chen, Nai-Chien Chang, Chen-Chiang Su
  • DC/AC power converter and controlling method thereof
    Patent number: 7495935
    Abstract: The proposed DC/AC power converter for transforming a DC input source to an AC output source includes a transformer having a primary and a secondary windings, a switch network having a first switch electrically connected between the DC input source and the primary winding, a two-way current-transmitting module electrically connected between the secondary winding and the AC output source and a controllable conducting circuit electrically connected to the secondary winding. In which, the controllable conducting circuit is conducting when the two-way current-transmitting module transmits an electrical energy from the primary winding to the secondary winding and a current flowing through the primary winding is decreasing so as to lower down a voltage stress of the first switch of the switch network.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: February 24, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Lin Chen, Zhiqiang Jiang, Jianping Ying
  • Control systems and switch devices thereof
    Patent number: 7495401
    Abstract: A control system for a motor. The control system and the motor receive an external power. The control system comprises a driver and a switch device. The driver is electrically connected to the motor. The switch device is electrically connected between the external power and the driver and turned on or off according to a control signal. The driver drives the motor according to the external power when the switch device is turned on.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 24, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Chin-Fa Chiu, Chun-Lung Chiu, Ming-Shi Tsai, Wen-Shi Huang
  • Adaptive synchronous rectification control circuit and method thereof
    Patent number: 7495934
    Abstract: The adaptive synchronous rectification control circuit and its controlling method for a power converter are provided. The proposed control circuit having a transformer with a primary and a secondary sides, a switch coupled to the primary side and a synchronous rectification transistor (SRT) coupled to the secondary side and having a parasitic diode includes a preprocessor receiving a source-drain voltage of the SRT and outputting a first signal, and a control set receiving the first signal, a pre-determined voltage and a pulse signal synchronized to the switch and generating a second signal synchronized to the switch for controlling the SRT, in which a selection of the pre-determined voltage makes the source-drain voltage of the SRT ranged from 0 to a conducting voltage of the parasitic diode of the SRT.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: February 24, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Lifeng Chen, Teng Liu, Hongjian Gan, Jianping Ying
  • Heat sink
    Patent number: D589003
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: March 24, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Yu-Hung Huang, Chun-Yang Hung, Sung-Ching Ho, Wen-Tsao Lee