Power supply applied to multiple loads, integrated power supply and lighting fixture

Patent metadata

Field	Value
Publication number	US-10863603-B2
Application number	US-202016828580-A
Country	US
Kind code	B2
Filing date	Mar 24, 2020
Priority date	Sep 25, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

The present disclosure provides a power supply applied to multiple loads, an integrated power supply and a lighting fixture. The power supply includes a first connector, at least one isolated power supply and at least one non-isolated power supply. The first connector is electrically connected with the at least one isolated power supply and the at least one non-isolated power supply, and is electrically connected with a controller, in order to adjust power states of the at least one isolated power supply and the at least one non-isolated power supply by receiving a power supply control signal from the controller. The at least one isolated power supply and the at least one non-isolated power supply are respectively connected with corresponding load circuit, to supply power to the load circuits, and control working states of the connected load circuits according to the power states thereof.

First claim

The invention claimed is:

1. A power supply applied to multiple loads, comprising:
a first connector,
at least one isolated power supply, and
at least one non-isolated power supply parallel with the at least one isolated power supply, wherein:
the first connector is electrically connected with the at least one isolated power supply and the at least one non-isolated power supply and is electrically connected with a controller in order to adjust power states of the at least one isolated power supply and the at least one non-isolated power supply by receiving a power supply control signal from the controller;
the at least one isolated power supply and the at least one non-isolated power supply are connected with load circuits which correspond to the at least one isolated power supply and the at least one non-isolated power supply, to supply power to the load circuits, and control working states of the load circuits connected to the at least one isolated power supply and the at least one non-isolated power supply according to the power states of the at least one isolated power supply and the at least one non-isolated power supply; and
the at least one isolated power supply, the at least one non-isolated power supply and the first connector are arranged on a same circuit board.

2. The power supply applied to the multiple loads according to claim 1 , wherein:
the controller, electrically connected with the first connector, is for receiving an external control signal from outside, and converting the external control signal into the power supply control signal corresponding to each of the load circuits, and transmitting the power supply control signals to the at least one isolated power supply and/or the at least one non-isolated power supply via the first connector, in order to control the power state of the at least one isolated power supply and/or the power state of the at least one non-isolated power supply by utilizing the power supply control signal according to a preset control rule.

3. The power supply applied to the multiple loads according to claim 2 , wherein:
the controller is provided with a second controller which is electrically connected with an external device to receive a control signal from the external device and convert the control signal from the external device into the power supply control signal corresponding to each of the load circuits; or
the controller is provided with a wireless signal receiver to receive a wireless control signal from an external device and convert the wireless control signal from the external device into the power supply control signal corresponding to each of the load circuits.

4. The power supply applied to the multiple loads according to claim 1 , wherein, the power state comprises:
an ON/OFF state of the at least one isolated power supply and/or an ON/OFF state of the at least one non-isolated power supply; and/or
a magnitude of an output current of the at least one isolated power supply and/or a magnitude of an output current of the at least one non-isolated power supply.

5. The power supply applied to the multiple loads according to claim 2 , wherein, after converting the external control signal into the power supply control signal corresponding to each of the load circuits, the controller utilizes a level property of the power supply control signal to control an ON/OFF state of the at least one isolated power supply and/or an ON/OFF state of the at least one non-isolated power supply, and wherein the level property refers to a high-low state of a level.

6. The power supply applied to the multiple loads according to the claim 5 , wherein, when the power supply control signal is a preset ON level, the controller utilizes the power supply control signal to control the ON/OFF state of the at least one isolated power supply and/or the ON/OFF state of the at least one non-isolated power supply to be an ON state, thus controlling a load circuit connected with the at least one isolated power supply and/or a load circuit connected with the at least one non-isolated power supply to work; and
when the power supply control signal is a preset OFF level, the controller utilizes the power supply control signal to control the ON/OFF state of the at least one isolated power supply and/or the ON/OFF state of the at least one non-isolated power supply to be an OFF state, thus controlling the load circuit connected with the at least one isolated power supply and/or the load circuit connected with the at least one non-isolated power supply to stop working.

7. The power supply applied to the multiple loads according to claim 2 , wherein, after the controller converts the external control signal into the power supply control signal corresponding to each of the load circuits, a duty ratio of the power supply control signal is utilized to adjust a magnitude of an output current of the at least one isolated power supply and/or a magnitude of an output current of the at least one non-isolated power supply.

8. The power supply applied to the multiple loads according to claim 7 , wherein, when the duty ratio of the power supply control signal changes, the controller utilizes the power supply control signal to adjust the magnitude of the output current of the at least one isolated power supply and/or the magnitude of the output current of the at least one non-isolated power supply according to a preset rule.

9. The power supply applied to the multiple loads according to claim 2 , wherein:
the controller is further provided with a third connector, and the third connector is butted with the first connector of the power supply, in order to electrically connect the controller with the at least one isolated power supply and/or the at least one non-isolated power supply.

10. The power supply applied to the multiple loads according to claim 9 , wherein:
the controller comprises an interface circuit wherein the interface circuit is connected with the third connector, and the controller utilizes the interface circuit to convert the external control signal into the power supply control signal corresponding to each of the load circuits, and transmit the power supply control signal to the at least one isolated power supply and/or the at least one non-isolated power supply via the third connector and the first connector.

11. The power supply applied to the multiple loads according to claim 1 , further comprising:
one isolated power supply and two non-isolated power supplies parallel with the isolated power supply, wherein the isolated power supply and the two non-isolated power supplies are connected with load circuits which correspond to the isolated power supply and the two non-isolated power supplies.

12. The power supply applied to the multiple loads according to claim 2 , further comprising a PFC circuit and an auxiliary power supply circuit connected with the PFC circuit, wherein:
the PFC circuit receives supplied power of an external power supply, and utilizes the supplied power of the external power supply to supply power to the auxiliary power supply circuit, the at least one isolated power supply, the at least one non-isolated power supply and the load circuits; and
the auxiliary power supply circuit receives supplied power of the PFC circuit, and supplies power to the at least one isolated power supply, the at least one non-isolated power supply and the controller.

13. The power supply applied to the multiple loads according to claim 12 , further comprising:
an over-temperature protecting circuit wherein the over-temperature protecting circuit is connected with the auxiliary power supply circuit to control an output state of th

Assignees

• Opple Lighting Co Ltd

Inventors

• Liu Huan
• Sui Zhonghua
• Feng Xuejun
• Feng Shougang

Classifications

• H05B45/56

  involving measures to prevent abnormal temperature of the LEDs · CPC title

• H05B45/3725 Primary

  Switched mode power supply [SMPS] · CPC title

• H02M1/008

  Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators · CPC title

• H05B45/355

  Power factor correction [PFC]; Reactive power compensation · CPC title

• H05B47/10 Primary

  Controlling the light source · CPC title