Patents by Inventor Ching-Ho Chou

Ching-Ho Chou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11388800
    Abstract: An operating method for a light-emitting diode (LED) power supply includes the following operations: controlling an output voltage to be a first voltage by a control circuit; detecting a load current by a detection circuit; maintaining the output voltage as the first voltage by a constant voltage control circuit when the load current is greater than zero, changing the output voltage from the first voltage to a second voltage by the control circuit when the load current is equal to zero, and the second voltage being greater than the first voltage.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 12, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Ho Chou, Yung-Chuan Lu
  • Patent number: 11343892
    Abstract: A driver is configured to provide an output voltage and an output current to a load according to an input voltage. The driver includes a power converter, first and second detecting devices and a controller. The power converter is configured to receive and convert the input voltage to the output voltage and the output current. The first detecting device is configured to detect the input voltage to generate a first signal. The second detecting device is configured to detect the output voltage to generate a second signal, and detect the output current to generate a third signal. The controller is configured to perform a calculation to the second signal and the third signal according to one of lookup tables corresponding to the first signal to generate a power value. An operation method of a driver and a light source system are also disclosed herein.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: May 24, 2022
    Assignee: DELTA ELECTRONICS INC.
    Inventors: Tsung-Ta Wu, Qi-Rong Lee, Wei-Cheng Chiu, Yu-Yung Huang, Ching-Ho Chou
  • Publication number: 20220061137
    Abstract: A driver is configured to provide an output voltage and an output current to a load according to an input voltage. The driver includes a power converter, first and second detecting devices and a controller. The power converter is configured to receive and convert the input voltage to the output voltage and the output current. The first detecting device is configured to detect the input voltage to generate a first signal. The second detecting device is configured to detect the output voltage to generate a second signal, and detect the output current to generate a third signal. The controller is configured to perform a calculation to the second signal and the third signal according to one of lookup tables corresponding to the first signal to generate a power value. An operation method of a driver and a light source system are also disclosed herein.
    Type: Application
    Filed: February 18, 2021
    Publication date: February 24, 2022
    Inventors: Tsung-Ta WU, Qi-Rong LEE, Wei-Cheng CHIU, Yu-Yung HUANG, Ching-Ho CHOU
  • Patent number: 11147180
    Abstract: A waterproof casing for packaging a circuit board is provided. The circuit board comprises an antenna. The waterproof casing comprises a metallic casing, a non-metallic end cover and a sealing gasket. The metallic casing comprises an accommodation space and a side opening in communication with each other. The accommodation space is configured to accommodate the circuit board. The antenna is adjacent to the side opening. The non-metallic end cover covers the side opening and combined with the metallic casing to form a sealed box. The non-metallic end cover comprises a ring-shaped install portion disposed on a surface thereof and extending outwardly from the surface. The ring-shaped install portion is disposed in the accommodation space as the non-metallic end cover covers the side opening. The sealing gasket is disposed around the ring-shaped install portion. A joint between the metallic casing and the non-metallic end cover is sealed by the sealing gasket.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 12, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Ho Chou, Po-Heng Chao, Hung-Chi Chen
  • Patent number: 11026338
    Abstract: A waterproof casing for packaging a circuit board having an antenna includes a housing, a waterproof gasket, and an end cover. The housing has an accommodation space and a side opening communicating with each other. The accommodation space is configured to accommodate the circuit board. The waterproof gasket includes a main body and an extending portion. The main body covers the side opening. The extending portion extends from the main body. The end cover abuts against a side of the main body away from the accommodation space, and is fixed to the housing to form a box with the housing. The box has a communication opening positioned corresponding to the antenna. The extending portion hermetically covers the communication opening.
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: June 1, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Ho Chou, Po-Heng Chao, Hung-Chi Chen
  • Patent number: 10986746
    Abstract: A power supply device with PCB-positioning features includes a casing, a PCB (Printed Circuit Board) and at least one pair of slots. The casing defines an accommodating space and has at least one opening. The PCB is disposed in the accommodating space and has electronic elements thereon. The at least one pair of slots is disposed at inner walls of the casing for positioning the PCB. A gel-fillable channel is defined between the electronic elements and the inner walls of the casing.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: April 20, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Po-Heng Chao, Jui-Ching Lee, Ching-Ho Chou
  • Publication number: 20210092814
    Abstract: An operating method for a light-emitting diode (LED) power supply includes the following operations: controlling an output voltage to be a first voltage by a control circuit; detecting a load current by a detection circuit; maintaining the output voltage as the first voltage by a constant voltage control circuit when the load current is greater than zero, changing the output voltage from the first voltage to a second voltage by the control circuit when the load current is equal to zero, and the second voltage being greater than the first voltage.
    Type: Application
    Filed: April 15, 2020
    Publication date: March 25, 2021
    Inventors: Ching-Ho CHOU, Yung-Chuan LU
  • Patent number: 10865976
    Abstract: A light-emitting diode driver is provided, including a housing, a plate, a wireless coil, and at least one electronic member. An opening is formed on a lateral wall of the housing. The plate is detachably connected to the housing, so as to cover the opening. The plate includes a first side, a first guiding slot formed on the first side, a second side opposite the first side, a second guiding slot formed on the second side, and a bottom side adjacent to a bottom plate of the housing. At least a portion of the lateral wall is accommodated in the first and second guiding slots. The wireless coil is disposed in the housing and adjacent to the plate. The electronic member is disposed in the housing and electrically connected to the wireless coil. The housing and the plate are respectively made of metal and non-metal materials.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: December 15, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jui-Ching Lee, Po-Heng Chao, Ching-Ho Chou
  • Publication number: 20200318824
    Abstract: A light-emitting diode driver is provided, including a housing, a plate, a wireless coil, and at least one electronic member. An opening is formed on a lateral wall of the housing. The plate is detachably connected to the housing, so as to cover the opening. The plate includes a first side, a first guiding slot formed on the first side, a second side opposite the first side, a second guiding slot formed on the second side, and a bottom side adjacent to a bottom plate of the housing. At least a portion of the lateral wall is accommodated in the first and second guiding slots. The wireless coil is disposed in the housing and adjacent to the plate. The electronic member is disposed in the housing and electrically connected to the wireless coil. The housing and the plate are respectively made of metal and non-metal materials.
    Type: Application
    Filed: August 22, 2019
    Publication date: October 8, 2020
    Inventors: Jui-Ching LEE, Po-Heng CHAO, Ching-Ho CHOU
  • Publication number: 20200221600
    Abstract: A waterproof casing for packaging a circuit board is provided. The circuit board comprises an antenna. The waterproof casing comprises a metallic casing, a non-metallic end cover and a sealing gasket. The metallic casing comprises an accommodation space and a side opening in communication with each other. The accommodation space is configured to accommodate the circuit board. The antenna is adjacent to the side opening. The non-metallic end cover covers the side opening and combined with the metallic casing to form a sealed box. The non-metallic end cover comprises a ring-shaped install portion disposed on a surface thereof and extending outwardly from the surface. The ring-shaped install portion is disposed in the accommodation space as the non-metallic end cover covers the side opening. The sealing gasket is disposed around the ring-shaped install portion. A joint between the metallic casing and the non-metallic end cover is sealed by the sealing gasket.
    Type: Application
    Filed: February 24, 2020
    Publication date: July 9, 2020
    Inventors: Ching-Ho Chou, Po-Heng Chao, Hung-Chi Chen
  • Publication number: 20200093018
    Abstract: A waterproof casing for packaging a circuit board having an antenna includes a housing, a waterproof gasket, and an end cover. The housing has an accommodation space and a side opening communicating with each other. The accommodation space is configured to accommodate the circuit board. The waterproof gasket includes a main body and an extending portion. The main body covers the side opening. The extending portion extends from the main body. The end cover abuts against a side of the main body away from the accommodation space, and is fixed to the housing to form a box with the housing. The box has a communication opening positioned corresponding to the antenna. The extending portion hermetically covers the communication opening.
    Type: Application
    Filed: February 17, 2019
    Publication date: March 19, 2020
    Inventors: Ching-Ho CHOU, Po-Heng CHAO, Hung-Chi CHEN
  • Publication number: 20190373749
    Abstract: A power supply device with PCB-positioning features includes a casing, a PCB (Printed Circuit Board) and at least one pair of slots. The casing defines an accommodating space and has at least one opening. The PCB is disposed in the accommodating space and has electronic elements thereon. The at least one pair of slots is disposed at inner walls of the casing for positioning the PCB. A gel-fillable channel is defined between the electronic elements and the inner walls of the casing.
    Type: Application
    Filed: November 23, 2018
    Publication date: December 5, 2019
    Inventors: Po-Heng CHAO, Jui-Ching LEE, Ching-Ho CHOU
  • Publication number: 20190342959
    Abstract: A light emitting element driving device includes a first energy storage element, a power source, and a converter circuit. The power source is electrically connected to the first energy storage element via the light emitting element in order to provide current to the light emitting element and to charge the first energy storage element. The converter circuit is electrically connected to the power source and the first energy storage element, and includes an inductance. When the converter circuit is in the first operational status, the first energy storage element charges the inductance. When the converter circuit is in the second operational status, the inductance is fed back to the power source.
    Type: Application
    Filed: October 2, 2018
    Publication date: November 7, 2019
    Inventors: Ching-Ho CHOU, Tsu-Hua AI
  • Patent number: 10249967
    Abstract: An electronic device connected to a wire is provided, including a printed circuit board having a hole, a hollow tube, a plurality of blades separated from each other, and a solder, wherein the wire in inserted into the hollow tube and electrically connected to the printed circuit board. The hollow tube is extended through the hole. The solder is connected to the blades and the printed circuit board. The blades are connected to the hollow tube, and a reflex angle is formed between the inner wall of the hollow tube and each of the blades.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: April 2, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shang-Yu Li, Hung-Chi Chen, Do Chen, Ching-Ho Chou
  • Publication number: 20180368225
    Abstract: An LED power supply device includes a primary winding, a secondary winding, a charge-pump capacitor, a bridge rectifier circuit, a unidirectional controlled switch, and an output capacitor. The secondary winding includes a first terminal and a second terminal and configured to provide a secondary current in response to a primary current flowing through the primary winding. A first terminal of the charge-pump capacitor is coupled to the second terminal of the secondary winding. The bridge rectifier circuit is coupled to the first terminal of the secondary winding and a second terminal of the charge-pump capacitor. The unidirectional controlled switch is reversely coupled to one of multiple diodes in the bridge rectifier circuit, and configured to be on or off according to a control voltage selectively. The output capacitor is coupled to the bridge rectifier circuit and configured to provide an output voltage according to the secondary current.
    Type: Application
    Filed: December 28, 2017
    Publication date: December 20, 2018
    Inventor: Ching-Ho CHOU
  • Patent number: D875680
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: February 18, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Ho Chou, Po-Heng Chao, Hung-Chi Chen
  • Patent number: D880742
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 7, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shang-Yu Li, Do Chen, Ching-Ho Chou
  • Patent number: D895547
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 8, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chun-Hung Kuo, Po-Heng Chao, Jui-Ching Lee, Ching-Ho Chou
  • Patent number: D924174
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: July 6, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jui-Ching Lee, Ching-Ho Chou, Do Chen
  • Patent number: D936581
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 23, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Po-Heng Chao, Ching-Ho Chou