CN221103598U

CN221103598U - LED driving constant voltage power supply based on DALI-2 protocol

Info

Publication number: CN221103598U
Application number: CN202322981362.0U
Authority: CN
Inventors: 吴光敏; 尹鹏飞; 汪小兵
Original assignee: Yiguang Technology Jiangsu Co ltd
Current assignee: Yiguang Technology Jiangsu Co ltd
Priority date: 2023-11-06
Filing date: 2023-11-06
Publication date: 2024-06-07
Anticipated expiration: 2033-11-06

Abstract

The utility model discloses a driving constant voltage power supply, which belongs to the technical field of LED power supplies, and particularly relates to an LED driving constant voltage power supply based on a DALI-2 protocol, comprising: the device comprises an auxiliary power supply module, a driving power supply module and a DALI interface module; the auxiliary power supply module comprises an auxiliary power supply module primary circuit and an auxiliary power supply module secondary circuit; the driving power supply module comprises a driving power supply module primary circuit and a driving power supply module secondary circuit; the utility model meets DALI2 requirement, has detection output open circuit and short circuit, the whole driving power supply is divided into a primary circuit and a secondary circuit, and has double-layer insulation, a singlechip for control is arranged at the secondary, can directly communicate with the output open circuit and short circuit signal, does not need to communicate through isolation components, avoids the problems of signal loss, delay and the like, and in addition, the driving power supply contains an auxiliary power supply and also has double-layer insulation, and can provide stable power supply for the primary circuit of the driving power supply module and the secondary circuit of the driving power supply module.

Description

LED driving constant voltage power supply based on DALI-2 protocol

Technical Field

The utility model discloses a driving constant voltage power supply, belongs to the technical field of LED power supplies, and particularly relates to an LED driving constant voltage power supply based on a DALI-2 protocol.

Background

DALI is a protocol specifically formulated for lighting control systems that defines the manner in which digital communications between lighting appliances (driving circuits for various types of light fixtures) and system equipment controllers (e.g., lighting controllers, sensors, etc.). Whereas DALI-2 is the second large version of the DALI protocol series, DALI-2 adds new functionality, achieves interoperability, and introduces standardization of control devices and equipment

However, the constant voltage power supply of the LED in the prior art can drive the LED lamp strip or the LED module with DC-DC constant current, dimming and controlling are performed through DALI, most of the current products only meet DALI requirements and authentication, but do not meet DALI2, meanwhile, the control singlechip is placed in the primary circuit, signal communication needs to be transmitted from the secondary to the primary through the isolation component, so that signal loss and delay are caused, or two singlechips are needed, one in the primary and one in the secondary, and the cost is increased.

Disclosure of utility model

The utility model aims to: there is provided a DALI-2 protocol based LED driving constant voltage power supply that solves the above-mentioned problems.

The technical scheme is as follows: a DALI-2 protocol based LED driving constant voltage power supply, the LED driving constant voltage power supply comprising: the device comprises an auxiliary power supply module, a driving power supply module and a DALI interface module; the secondary circuit of the auxiliary power supply module and the output end of the DALI interface module are connected with the secondary circuit of the driving power supply module; the auxiliary power supply module comprises an auxiliary power supply module primary circuit and an auxiliary power supply module secondary circuit; the driving power supply module comprises a driving power supply module primary circuit and a driving power supply module secondary circuit; the auxiliary power supply module primary circuit and the auxiliary power supply secondary circuit are respectively connected with the driving power supply module primary circuit and the driving power supply module secondary circuit and provide stable power supply.

In a further embodiment, a singlechip and an output open-short circuit detection circuit connected with the singlechip are arranged in the secondary circuit of the driving power supply module.

In a further embodiment, the driving power module and the auxiliary power module employ a double insulation structure.

In a further embodiment, the auxiliary power module primary circuit and the auxiliary power module secondary circuit are connected in series, and the auxiliary power module primary circuit and the auxiliary power module secondary circuit are respectively connected to the driving power module primary circuit and the driving power module secondary circuit and provide stable power supply.

In a further embodiment, the output end of the secondary circuit module of the driving power module is externally connected with an LED module.

In a further embodiment, an output end of the output open-circuit detection circuit is connected with the LED module.

The beneficial effects are that: the utility model discloses a driving constant voltage power supply, which belongs to the technical field of LED power supplies, and particularly relates to an LED driving constant voltage power supply based on a DALI-2 protocol, comprising: the device comprises an auxiliary power supply module, a driving power supply module and a DALI interface module; the auxiliary power supply module comprises an auxiliary power supply module primary circuit and an auxiliary power supply module secondary circuit; the driving power supply module comprises a driving power supply module primary circuit and a driving power supply module secondary circuit; the utility model has the following advantages:

1. meets the DALI2 requirement, and has detection output of open circuit and short circuit.

2. The whole driving power supply is divided into a primary circuit and a secondary circuit, and has double-layer insulation. The singlechip for control is placed in the secondary stage, can be directly communicated with the output open circuit and short circuit signals, does not need to be communicated through isolation components and parts, and avoids the problems of signal loss, delay and the like.

3. The driving power supply contains an auxiliary power supply and also has double-layer insulation, and can provide stable power supply for a primary circuit and a secondary circuit of the driving power supply.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

A DALI-2 protocol based LED driven constant voltage power supply comprising: the device comprises an auxiliary power supply module, a driving power supply module and a DALI interface module; the secondary circuit of the auxiliary power supply module and the output end of the DALI interface module are connected with the secondary circuit of the driving power supply module; the auxiliary power supply module comprises an auxiliary power supply module primary circuit and an auxiliary power supply module secondary circuit; the driving power supply module comprises a driving power supply module primary circuit and a driving power supply module secondary circuit; the auxiliary power supply module primary circuit and the auxiliary power supply secondary circuit are respectively connected with the driving power supply module primary circuit and the driving power supply module secondary circuit and provide stable power supply.

In one embodiment, as shown in fig. 1, a singlechip and an output open-short circuit detection circuit connected with the singlechip are arranged in the secondary circuit of the driving power supply module.

In one embodiment, as shown in fig. 1, the driving power module and the auxiliary power module adopt a double insulation structure.

In one embodiment, as shown in fig. 1, the primary circuit of the auxiliary power module and the secondary circuit of the auxiliary power module are connected in series, and the primary circuit of the auxiliary power module and the secondary circuit of the auxiliary power module are respectively connected to the primary circuit of the driving power module and the secondary circuit of the driving power module and provide stable power supply.

In one embodiment, as shown in fig. 1, the output end of the secondary circuit module of the driving power module is externally connected with an LED module.

In one embodiment, as shown in fig. 1, the output end of the output open-circuit detection circuit is connected with the LED module.

In one embodiment, as shown in fig. 1, the singlechip is placed in the secondary circuit, and can directly communicate with the output open circuit and short circuit detection circuit, so that the problems of signal loss, delay and the like are avoided without communicating through an isolation component.

Working principle: when the LED module works, the external power supply firstly inputs voltages for the driving power supply module and the auxiliary power supply module, so that the voltages flow into the driving power supply module primary circuit and the driving power supply module secondary circuit, the auxiliary power supply module primary circuit and the auxiliary power supply module secondary circuit respectively provide stable voltages for the driving power supply module primary circuit and the driving power supply module secondary circuit, the DALI interface module inputs signals into the driving power supply module secondary circuit, and the driving power supply module secondary circuit directly communicates with the output open circuit short circuit signals, so that the output signals are sent to the LED module.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A DALI-2 protocol based LED driving constant voltage power supply, characterized in that the LED driving constant voltage power supply comprises: the device comprises an auxiliary power supply module, a driving power supply module and a DALI interface module;

The auxiliary power supply module comprises an auxiliary power supply module primary circuit and an auxiliary power supply module secondary circuit;

The driving power supply module comprises a driving power supply module primary circuit and a driving power supply module secondary circuit;

The secondary circuit of the auxiliary power supply module and the output end of the DALI interface module are connected with the secondary circuit input end of the driving power supply module; the auxiliary power module primary circuit and the auxiliary power module secondary circuit are respectively connected with the driving power module primary circuit and the driving power module secondary circuit and provide stable power supply.

2. The DALI-2 protocol-based LED driving constant voltage power supply according to claim 1, wherein a singlechip and an output open-short circuit detection circuit connected with the singlechip are arranged in a secondary circuit of the driving power supply module.

3. The DALI-2 protocol based LED driving constant voltage power supply of claim 1, wherein the driving power supply module and the auxiliary power supply module are of a double insulation structure.

4. The DALI-2 protocol based LED driving constant voltage power supply of claim 1, wherein the auxiliary power module primary circuit and the auxiliary power module secondary circuit are connected in series, and the auxiliary power module primary circuit and the auxiliary power module secondary circuit are connected to and provide stable power to the driving power module primary circuit and the driving power module secondary circuit, respectively.

5. The DALI-2 protocol based LED driving constant voltage power supply of claim 2, wherein the output of the driving power module secondary circuit module is externally connected to an LED module.

6. The DALI-2 protocol based LED driving constant voltage power supply of claim 5, wherein the output of the output open-circuit detection circuit is connected to the LED module.