LED driver, LED lighting device, and LED lighting system
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SIGNIFY HOLDING BV
- Filing Date
- 2024-05-23
- Publication Date
- 2026-06-16
AI Technical Summary
【0007】 本発明の基本的な考え方は、小電力モードにある各照明負荷において電力変換回路によって必要とされる電力の全てを、中央デバイスにおいて高い効率で生成し、この電力を前記制御ネットワークを介して各ノードに分配するというものである。各ノードにおいて、主電源から高電力損失で小電力を生成する代わりに、前記ノードは、前記制御ネットワークからこの電力を引き出し、引き出した電力を前記電力変換回路のエネルギ交換構成要素(energy exchanging component)に印加する。従って、前記電力変換回路は、主電源から高電力損失で動作せず、効率が高められる。ここでは、制御ネットワークという用語は、ネットワークであって、前記ネットワークの主目的が制御信号を通信するためのものであるネットワークを意味し、前記用語は、好ましくは、ネットワークであって、AC主電源グリッド又はDCグリッドなどの、前記ネットワークの主目的が電力信号を分配するためのものであるネットワークを除外し、前記用語は、更により好ましくは、電力線通信ネットワークも除外する。
Smart Images
Figure 2026519626000001_ABST
Abstract
Claims
1. LED driver device, An input connected to the primary input power and receiving the primary input power, The output connected to the LED load, A power conversion circuit adapted to convert the primary input power into primary output power in a first mode and to supply the primary output power to the LED load via the output, the power conversion circuit comprising at least one energy exchange component powered by the power conversion circuit in the first mode, A controller adapted to switch the LED driver to the first mode, further adapted to switch the LED driver to a second mode, thereby at least partially stopping the conversion of the primary input power to the primary output power and outputting it to the LED load, and thereby at least partially stopping the supply of power to the energy exchange component, A control interface connected to a remote / external control node via a control network, An auxiliary power supply circuit connected to the control interface and the power conversion circuit, when in the second mode, Through the control network, auxiliary power is drawn from the remote / external control node. An LED driver device having an auxiliary power supply circuit adapted to supply the auxiliary power to the energy exchange component.
2. The LED driver according to claim 1, wherein the controller is adapted to switch the LED driver to the second mode and completely stop converting the primary input power to the primary output power and outputting it to the LED load.
3. The LED driver according to claim 1, wherein the energy exchange component is adapted to be charged and discharged by the power converted by the power conversion circuit to supply power to the load.
4. The energy exchange component is The buffer capacitor in the power conversion circuit, and The LED driver according to claim 2, further comprising one of the power inductors of the power conversion circuit including a switch-mode power supply.
5. The power conversion circuit has a plurality of conversion stages, including a first stage and at least one subsequent stage. The LED driver according to claim 1, wherein the energy exchange component is located in one of the subsequent stages, and the stage prior to this subsequent stage is adapted to be stopped, while the subsequent stage and subsequent stages are adapted to convert the auxiliary power.
6. The LED driver according to claim 4, wherein the subsequent stage and the stage after it have integrated circuits for driving the subsequent stage and the stage after it, and the auxiliary power supply circuit is adapted to supply the auxiliary power to the integrated circuits for driving the subsequent stage and the stage after it.
7. The LED driver according to claim 1, wherein the energy exchange component is located at the output and the power conversion circuit is adapted to be stopped.
8. The LED driver according to claim 1, wherein the second mode is a standby mode, and the auxiliary power supply circuit is adapted to supply the auxiliary power to the energy exchange component and adjust the power at the output to be higher than a threshold, but not sufficient to turn on the LED load.
9. The LED driver according to claim 1, wherein the second mode is a dimming mode, and the auxiliary power supply circuit is adapted to supply the auxiliary power to the energy exchange component such that the power at the output is sufficient to turn on the LED load but is below a threshold.
10. The LED driving device according to claim 1, wherein the control network is a communication network.
11. The control interface is Dimming interface, and The LED driver according to claim 1, comprising any one of the sensor interfaces.
12. The dimming interface, A 1-10V analog dimming interface, wherein the controller is adapted to switch the LED driver to the second mode when the analog voltage in the 1-10V dimming interface is below a certain level, and the auxiliary power supply has at least one boost circuit stage to boost the analog voltage and supply the boosted analog voltage to the energy exchange component, and Includes one of the DALI digital interfaces, The aforementioned sensor interface The LED driver according to claim 10, including a DALI sensor-compatible digital interface.
13. A lighting device having an LED driver according to any one of claims 1 to 12 and an LED load.
14. At least one of the LED lighting devices according to claim 13, Remote control node, and An LED lighting system having a control network that interconnects the LED lighting device and the control node, An LED lighting system in which the remote control node is adapted to supply the auxiliary power to the LED lighting device via the control network.
15. The LED lighting system according to claim 14, wherein the remote control node is adapted to transmit commands to the LED lighting device via the control network for controlling the LED lighting device to switch between the first mode and the second mode.