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US 12,224,578 B2Granted
Source circuit and power supply and electric system
AssigneeTridonic GmbH & Co KG
InventorsXinhai Li, Yaofeng Lin, Zongjie Wu, Harald Netzer
Life of this patent
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Abstract
A source circuit, a power supply and an electric system. The source circuit includes at least one voltage source supplied from a mains circuit and used to provide at least one voltage for at least one device and at least one switch respectively connected to the at least one voltage source and controlled to be turned on according to a voltage of the mains circuit and/or at a timing after the mains circuit being applied corresponding to the device.
Claims14
A source circuit, comprising:
- one or more voltage sources supplied from a mains circuit receiving AC power or rectified AC power, wherein each voltage source is configured to supply DC voltage to a device comprising one or more LEDs;
- and
- one or more switches respectively connected between the one or more voltage sources and the device to which the respective voltage source supplies DC voltage and wherein each switch is controlled to be turned on according to a timing, after the mains circuit is applied, corresponding to the device for which the respective voltage source is configured to supply DC voltage, and further wherein the timing is a random value corresponding to the respective device, and the random value timing for each switch is stored on the switch.
A power supply including:
- a mains circuit receiving AC power or rectified AC power;
- a source circuit comprising:
- a plurality of voltage sources supplied from the mains circuit, wherein each voltage source is configured to supply DC voltage to a device comprising one or more LEDs, wherein the voltage sources are DALI LED drivers;
- and
- a switch connected between each voltage source and the device to which the respective voltage source supplies DC voltage;
- a DALI controller providing timing information after the mains circuit is applied for which the respective voltage supply is configured to supply DC voltage;
- a DALI bus to which the DALI controller and the DALI LED drivers are connected;
- and
- a DALI power supply connected to the mains circuit and supplying DC voltage to the DALI bus;
- wherein the DALI controller provides the timing information to the DALI LED drivers via the DALI bus and the DALI LED drivers 804 connect to the mains circuit according to the timing information.
7 more elements
Dependencies are inferred from the claim text.