Patents Assigned to Delta Electronics (Thailand) Public Company Limited
  • Patent number: 10411486
    Abstract: A power conversion device includes a thermal conductive substrate, a DC-to-DC converter circuit assembly, an on board charger module (OBCM) circuit assembly and at least one electric wire. The thermal conductive substrate has a first surface and a second surface opposite to each other. The DC-to-DC converter circuit assembly is disposed on the first surface. The OBCM circuit assembly is disposed on the first surface as well. An end of the electric wire connects with the DC-to-DC converter circuit assembly, another end of the electric wire connects with the OBCM circuit assembly.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 10, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Pei-Ai You, Hao Sun, Jin-Fa Zhang
  • Patent number: 10396777
    Abstract: An ORing circuit is provided. The ORing circuit includes an input port, an output port, an ORing FET, a comparing circuit, a first transistor and a second transistor. The ORing FET is connected between the input port and the output port and comprises a source connected with the input port, a gate and a drain connected with the output port. The comparing circuit is connected with the input port and the gate. The first transistor comprises a first terminal, a second terminal and a third terminal. The first terminal is connected with the input port and the source, and the third terminal is connected with the gate. The second transistor comprises a fourth terminal, a fifth terminal and a sixth terminal. The fourth terminal is connected with the output port and the drain, and the sixth terminal is connected with the second terminal of the first transistor.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: August 27, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventor: Cheevanantachai Phichej
  • Patent number: 10389266
    Abstract: A rectification module includes a transformer, a connecting unit and a rectification unit. The transformer includes a first lateral region, a second lateral region and at least one secondary winding assembly. The second lateral region is located beside the first lateral region. The secondary winding assembly includes plural outlet ends. The plural outlet ends are arranged near the first lateral region. The connecting unit is located at the first lateral region, and includes plural conducting plates. Each of the conducting plates includes at least one opening and at least one connecting structure. The conducting plates are partially or completely stacked on each other. The outlet ends are accommodated within the corresponding openings. The conducting plates are fixed on the first lateral region. The connecting structures face the second lateral region. The rectification unit includes a circuit board and plural rectifier components.
    Type: Grant
    Filed: June 30, 2018
    Date of Patent: August 20, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Hao Lu, Tianding Hong, Bofeng Xu, Jie Ruan, Jinfa Zhang
  • Patent number: 10389270
    Abstract: A power conversion device includes a main board, a connector module, an input conversion module, a capacitor, an output conversion module, a control module and a conducting part. The main board includes two lateral edges along a first direction and two lateral edges along a second direction. The connector module is mounted on the main board, and includes an input connector and an output connector. The output connector is located under the input connector. The input conversion module, the output conversion module and the control module are perpendicularly mounted on the main board. The conducting part is in parallel with the control module and electrically coupled with the input connector or the output connector. The connector module, the input conversion module, the capacitor and the output conversion module are mounted on the main board and arranged in a line along the second direction.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 20, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Jia Sun, Junlai Huang, Xuanshun Qi, Kai Dong, Zhongwei Ke
  • Patent number: 10389258
    Abstract: The invention relates to an integrated magnetic component (802) for a power converter including N>=2 LLC converters configured for interleaved operation. The integrated magnetic component (802) includes a first yoke and a second yoke and for each LLC converter a winding carrying leg which comprises a primary winding (820c) and a secondary winding (821c), wherein the primary winding (820c) and the secondary winding (821c) are wound on the respective winding carrying leg. The integrated magnetic component (802) further includes one or more return legs. Herein the winding carrying legs and the one or more return legs are arranged side by side, each leg being magnetically connected to both yokes and the winding carrying legs include a transformer air gap (819) whereas the at least one return leg is air gap free and at least one return leg is arranged between two winding carrying legs.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: August 20, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Hugues Douglas Njiende, Osman Erinc, Daniel Ruff
  • Patent number: 10327362
    Abstract: A multi-channel power source includes at least one first power conversion unit, at least one second power conversion unit and a heat dissipation device. The first power conversion unit has a plurality of first subsidiary units. The first subsidiary units are electrically connected with each other. Each of the first subsidiary units has at least one first heating element. The second power conversion unit has a plurality of second subsidiary units. The second subsidiary units are electrically connected with each other. Each of the second subsidiary units has at least one second heating element. The heat dissipation device is configured to dissipate a heat generated by the first heating elements and the second heating elements along at least one heat dissipation medium direction. The first subsidiary units and the second subsidiary units are arranged in an at least partially staggered manner along the heat dissipation medium direction.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: June 18, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Xuan-Shun Qi, Cheng-Feng Yu, Bo Shen, Hao Lu, Kai Dong
  • Patent number: 10321612
    Abstract: A power conversion device includes a main board, an electromagnetic interference filter module, an auxiliary power module, a capacitor group, a main power unit, a control plate, an output bus bar and a fan. A first air channel is formed between the auxiliary power module and the electromagnetic interference filter module. A second air channel is formed between two rows of the capacitor group. A third air channel is formed between the two main power conversion modules of the main power unit. The control plate is perpendicularly installed on the main board. The output bus bar is perpendicularly installed on the main board, arranged in parallel with the control plate and located near the control plate. The fan is located near the main power unit and producing airflow to the first air channel, the second air channel and the third air channel.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 11, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Dagang Liu, Junlai Huang, Xuanshun Qi, Kai Dong, Zhongwei Ke
  • Patent number: 10284004
    Abstract: A charging system and a method are provided. The charging system includes a power supply device, a charging module and a battery module. The charging module is detachably connected with the power supply device, and connected with the battery module. The charging module includes a power converting unit, a voltage regulator and a charging controller. When the power supply device and the charging module are connected with each other, the power converting unit of the charging module is in the backward direction and uses the electric power of the battery module to pre-charge a bus capacitor. If the voltage of the bus capacitor is higher than or equal to a first threshold value because of pre-charge, the voltage of an adjusting terminal of the charging module is adjusted. Consequently, the charging system is in a normal working mode.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 7, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Hao Sun, Jinfa Zhang, Yueyong Meng, Shuanggang Li
  • Patent number: 10225935
    Abstract: A power conversion device includes an input conversion module, an output conversion module, a filtering module and a controlling module, which are installed on a main board. The main board includes a first edge, a second edge, a third edge and a fourth edge. The first edge and the second edge are opposed to each other. The third edge and the fourth edge are opposed to each other. A first part of the input conversion module is located near the first edge and the third edge. A second part of the input conversion module is near the first edge and the fourth edge. An airflow channel is formed between the first part and the second part. The output conversion module is near the second edge. The filtering module is near the second edge. The controlling module is arranged between the first part and the third edge.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 5, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Tie Chen, Youzhun Cai, Keting Fang, Chengfeng Yu
  • Patent number: 10170976
    Abstract: A method for phase compensating a power factor correction circuit is provided. Firstly, a present current value of an input current is sampled, and the sampled signal is filtered. Then, a present waveform of the input current corresponding to the present current value of the filtered sampled signal and a previous waveform of the input current corresponding to a previous current value of the filtered sampled signal are predicted, and a current error signal is generated according to a difference between the present waveform and the previous waveform. Then, the current error signal is adjusted, and an adjusted signal is generated. Then, a feedforward signal is added to the adjusted signal, and a phase compensation signal. Then, a current control signal is added to the phase compensation signal, and a pulse width modulation signal is generated to control a switching circuit.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 1, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY, LIMITED
    Inventor: Dominik Reinhard Beinlich
  • Patent number: 10146281
    Abstract: A load communication device and method is provided, that identifies and transmits to a PSU the load requirement to operate a load device that is powered by the PSU, by analyzing the characteristics of current applied to the load device by a given input voltage generated by the PSU. The load communication device is configured to transmit between the PSU and the load device solely over the 2 wire cable that extends between the PSU and the load device.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: December 4, 2018
    Assignee: DELTA ELECTRONICS THAILAND PUBLIC COMPANY LIMITED
    Inventors: Ionel Jitaru, Bogdan Tudor Bucheru, Marco Davila
  • Patent number: 10097105
    Abstract: The present invention provides a synchronous rectification module. The synchronous rectification module includes a circuit board, a transformer, two synchronous rectification sets and a grounding set. The transformer includes a primary winding and a secondary electrically-conductive foil winding. The first and second synchronous rectification sets are symmetrically disposed on the circuit board, corresponding to the transformer and electrically connected to a secondary dotted end tap and a secondary synonyms end tap of the secondary electrically-conductive foil winding respectively.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 9, 2018
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Youzhun Cai, Chengfeng Yu, Sanchao Sun, Jiajia Ouyang
  • Patent number: 7826239
    Abstract: Disclosed is an overload protection delay circuit for use in a switching power supply for enabling the switching power supply to detect overload problems with high accuracy. The overload protection delay circuit is connected between a photo coupler and a pulse-width modulator of the switching power supply, and is consisted of an energy storage device such as a capacitor and a charging controller such as a zener diode. The charging controller is configured to set a limit value for allowing the energy storage device to be charged by an internal current source of the pulse-width modulator when the feedback signal of the switching power supply reaches the limit value. By charging the energy storage device, a time delay is added to the feedback signal so that the pulse-width modulator can accurately activate the internal overload protection mechanism without the interference of load transients.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: November 2, 2010
    Assignee: Delta Electronics (Thailand) Public Company, Limited
    Inventors: Chalermkiat Tepsumran, Allwyn Jacob D. Cunha, Apinun Pomta
  • Patent number: 7541793
    Abstract: An active droop current sharing technique combined with current limiting function is employed in a parallel power supply. The parallel power supply is characterized with a current sensing amplifier that generates a current feedback signal representing a difference between a nominal output voltage and a fractional output voltage. The current sensing amplifier is coupled to a threshold level generator providing a threshold level defining a voltage level corresponding to a maximum allowed output current of the parallel power supply. If the voltage level of the current feedback signal exceeds the threshold level, the threshold level generator is turned on and the current feedback signal is coupled to a switching controller to adjust the output voltage of the power converter for properly addressing the current imbalance among plural parallel power supplies.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: June 2, 2009
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company, Limited
    Inventors: Sakda Saeueng, Ming Chun Xu
  • 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
  • Publication number: 20080198557
    Abstract: A heat-dissipating module includes a circuit board, an electronic component and a heat-dissipating device. The circuit board includes at least a hollow portion and at least a contact portion. The electronic component includes at least a pin connected to the contact portion of the circuit board.
    Type: Application
    Filed: April 24, 2007
    Publication date: August 21, 2008
    Applicant: Delta Electronics (Thailand) Public Company, Limited
    Inventors: Choo Soo Lim, Piya Theprin, Suksit Khammukchik
  • Patent number: 7394633
    Abstract: A reverse current protection circuit is provided to protect the internal circuit components of a switching power supply from being damaged by a reverse current discharging from an input filtering capacitor. The reverse current protection circuit according to a preferred embodiment includes a transistor switch coupled between an input terminal and the input filtering capacitor. The reverse current protection circuit also includes a surveillance device for monitoring the change of a voltage polarity across the current-conducting terminals of the transistor switch and generating a driving signal if the voltage polarity across the current-conducting terminals of the transistor switch is changed. The reverse current protection circuit also includes a signal coupler for coupling the driving signal to the control terminal of the transistor switch in order to turn off the transistor switch so as to block the discharging loop of the reverse current.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: July 1, 2008
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company, Limited
    Inventors: Alongkorn Sasitornwannakul, Phichej Cheevanantachai, Weng Leong Hon
  • Patent number: 7289342
    Abstract: There is provided an output voltage stabilizer for stabilizing an output voltage of a switching mode power supply by elimination power bounce appearing on the output voltage of the switching mode power supply. The output voltage stabilizer mainly includes a voltage comparator that compares a rectified DC voltage obtained by the rectification of an input AC voltage with a reference voltage and in response thereto generates an output signal, and a control switch that is biased according to the output signal of the voltage comparator and provides the power supply a drive signal to stabilize an output voltage of the power supply during the brownout or soft-start stage in the input AC voltage.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: October 30, 2007
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company Limited
    Inventors: Allwyn Jacob D'Cunha, Piyaphong Bumroongsawad
  • Patent number: 7158384
    Abstract: A vibration reducing structure of an electronic device includes first and second housings, a printed circuit board, a first post and a second post. The first and second housings define a closed space therebetween. The printed circuit board is disposed within the space and having a heavy component mounted on a first surface thereof. The first post is arranged on the first housing and under the heavy component. The second post is arranged on the second housing and above the heavy component.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: January 2, 2007
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company, Limited
    Inventor: Jui Ching Huang
  • Patent number: D839826
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 5, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Kai Dong, Keting Fang, Hongming Li, Jie Ruan, Zhongwei Ke