CN215300983U

CN215300983U - Power supply control circuit for ceiling lamp

Info

Publication number: CN215300983U
Application number: CN202121381740.6U
Authority: CN
Inventors: 张保锋
Original assignee: Jiangmen Volta Electronics Co ltd
Current assignee: Jiangmen Volta Electronics Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-24
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to a ceiling lamp technical field specifically discloses a ceiling lamp power supply control circuit, including power input circuit, power voltage stabilizing circuit, power output circuit and output connection circuit, power input circuit's output is connected with power voltage stabilizing circuit's input electricity, power voltage stabilizing circuit's output is connected with power output circuit's input electricity, power output circuit's output is connected with the output connection circuit electricity. The utility model discloses a set up power voltage stabilizing circuit and power output circuit and mutually support the connection work, improve power supply's stability greatly, avoid appearing the condition of burning out LED ceiling lamp control chip under the unstable condition of input voltage to circuit structure is comparatively simple, and the cost of manufacture is lower.

Description

Power supply control circuit for ceiling lamp

Technical Field

The utility model relates to a ceiling lamp technical field, in particular to ceiling lamp power supply control circuit.

Background

In recent years, global energy shortage and environmental pollution problems are increasingly prominent, and energy-saving and environment-friendly technologies are increasingly emphasized. Semiconductor lighting has the advantages of long service life, energy conservation, environmental protection and the like, and is widely applied to the fields of industrial equipment, instruments, traffic signals, automobiles, backlight sources, various illuminations and the like. The LED ceiling lamp has the advantages of high efficiency, energy conservation, long service life, low-voltage controllability and the like, and is widely applied to various illumination fields. However, the existing power supply control circuit of the ceiling lamp is complex in structure and high in manufacturing cost, and easily burns out the control chip of the LED ceiling lamp under the unstable input voltage, so that the power supply stability is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a ceiling lamp power supply control circuit, through setting up power voltage stabilizing circuit and power output circuit and mutually support the connection work, improve power supply's stability greatly, avoid appearing the condition of burning out LED ceiling lamp control chip under the unstable condition of input voltage to circuit structure is comparatively simple, and the cost of manufacture is lower.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a ceiling lamp power supply control circuit, includes power input circuit, power voltage stabilizing circuit, power output circuit and output connection circuit, power input circuit's output is connected with power voltage stabilizing circuit's input electricity, power voltage stabilizing circuit's output is connected with power output circuit's input electricity, power output circuit's output is connected with output connection circuit electricity.

Preferably, the power input circuit comprises an alternating current live wire end ACL, an alternating current null line end ACN and a fuse F1, the alternating current live wire end ACL is connected with one end of a fuse F1, and the other end of the fuse F1 and the alternating current null line end ACN are both connected with the input end of the power voltage stabilizing circuit.

Preferably, the power voltage stabilizing circuit comprises a transformer T1 and a rectifier bridge DB1, a first pin of a transformer T1 at the other end of the fuse F1 is connected, a second pin of the transformer T1 is connected with an ac neutral terminal ACN, a third pin of the transformer T1 is connected with a first end of the rectifier bridge DB1, a fourth pin of the transformer T1 is connected with a second end of the rectifier bridge DB1, a fourth end of the rectifier bridge DB1 is connected with an input end of the power output circuit, and a third end of the rectifier bridge DB1 is grounded.

Preferably, the power output circuit includes a capacitor E1, a capacitor E2, an inductor L1, and a resistor R1, one end of the capacitor E1, one end of the inductor L1, and one end of the resistor R1 are all connected to the fourth terminal of the rectifier bridge DB1, one end of the capacitor E2, the other end of the inductor L1, and the other end of the resistor R1 are all connected to the input terminal of the output connection circuit, and the other end of the capacitor E1 and the other end of the capacitor E2 are all grounded.

Preferably, the output connection circuit includes a resistor R2, and one end of the resistor R2 is connected to the other end of the resistor R1.

Adopt above-mentioned technical scheme, the utility model provides a pair of ceiling lamp power supply control circuit has following beneficial effect: the output of the power input circuit in the power supply control circuit of the ceiling lamp is electrically connected with the input of the power supply voltage stabilizing circuit, the output of the power supply voltage stabilizing circuit is electrically connected with the input of the power output circuit, the output of the power output circuit is electrically connected with the output connection circuit, the power supply voltage stabilizing circuit and the power output circuit are mutually matched and connected to work through setting, the stability of the power supply is greatly improved, the condition that an LED ceiling lamp control chip is burnt out under the unstable condition of input voltage is avoided, the circuit structure is simple, used components and parts are few, and therefore the manufacturing cost is low.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1, the utility model discloses an among the circuit schematic diagram, this ceiling lamp power supply control circuit includes power input circuit, power voltage stabilizing circuit, power output circuit and output connection circuit, and this power input circuit's output is connected with power voltage stabilizing circuit's input electricity, and this power voltage stabilizing circuit's output is connected with power output circuit's input electricity, and this power output circuit's output is connected with output connection circuit electricity. It can be understood that external alternating current is connected from the power input circuit and then is output to the ceiling lamp driving circuit through the power voltage stabilizing circuit, the power output circuit and the output connecting circuit in sequence, so that a stable working power supply is provided for the ceiling lamp.

Specifically, the power supply input circuit comprises an alternating current live wire end ACL, an alternating current null line end ACN and a fuse F1, wherein the alternating current live wire end ACL is connected with one end of a fuse F1, and the other end of the fuse F1 and the alternating current null line end ACN are both connected with the input end of the power supply voltage stabilizing circuit; the power supply voltage stabilizing circuit comprises a transformer T1 and a rectifier bridge DB1, the first pin of a transformer T1 at the other end of the fuse F1 is connected, the second pin of the transformer T1 is connected with an AC neutral wire terminal ACN, the third pin of the transformer T1 is connected with the first end of the rectifier bridge DB1, the fourth pin of the transformer T1 is connected with the second end of the rectifier bridge DB1, the fourth end of the rectifier bridge DB1 is connected with the input end of the power supply output circuit, and the third end of the rectifier bridge DB1 is grounded; the power output circuit comprises a capacitor E1, a capacitor E2, an inductor L1 and a resistor R1, one end of the capacitor E1, one end of the inductor L1 and one end of the resistor R1 are all connected with the fourth end of the rectifier bridge DB1, one end of the capacitor E2, the other end of the inductor L1 and the other end of the resistor R1 are all connected with the input end of the output connection circuit, and the other end of the capacitor E1 and the other end of the capacitor E2 are all grounded; the output connection circuit includes a resistor R2, and one end of the resistor R2 is connected to the other end of the resistor R1. It is understood that the rectifier bridge DB1 may be an MB10F rectifier bridge, or the like.

It can be understood that the utility model relates to a rationally, the structure is unique, through setting up power voltage stabilizing circuit and power output circuit and mutually support the connection work, improves power supply's stability greatly, avoids appearing the condition of burning out LED ceiling lamp control chip under the unstable condition of input voltage to circuit structure is comparatively simple, and used components and parts are less, therefore the cost of manufacture is lower.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a ceiling lamp power supply control circuit which characterized in that: the power supply comprises a power supply input circuit, a power supply voltage stabilizing circuit, a power supply output circuit and an output connecting circuit, wherein the output end of the power supply input circuit is electrically connected with the input end of the power supply voltage stabilizing circuit, the output end of the power supply voltage stabilizing circuit is electrically connected with the input end of the power supply output circuit, and the output end of the power supply output circuit is electrically connected with the output connecting circuit.

2. The ceiling lamp power supply control circuit of claim 1, wherein: the power supply input circuit comprises an alternating current live wire end ACL, an alternating current zero line end ACN and a fuse F1, the alternating current live wire end ACL is connected with one end of a fuse F1, and the other end of the fuse F1 and the alternating current zero line end ACN are connected with the input end of the power supply voltage stabilizing circuit.

3. The ceiling lamp power supply control circuit of claim 2, wherein: the power supply voltage stabilizing circuit comprises a transformer T1 and a rectifier bridge DB1, a first pin of a transformer T1 at the other end of a fuse F1 is connected, a second pin of the transformer T1 is connected with an AC zero line terminal ACN, a third pin of a transformer T1 is connected with a first end of a rectifier bridge DB1, a fourth pin of the transformer T1 is connected with a second end of the rectifier bridge DB1, a fourth end of the rectifier bridge DB1 is connected with an input end of the power supply output circuit, and a third end of the rectifier bridge DB1 is grounded.

4. The ceiling lamp power supply control circuit of claim 3, wherein: the power output circuit comprises a capacitor E1, a capacitor E2, an inductor L1 and a resistor R1, one end of the capacitor E1, one end of the inductor L1 and one end of the resistor R1 are all connected with the fourth end of the rectifier bridge DB1, one end of the capacitor E2, the other end of the inductor L1 and the other end of the resistor R1 are all connected with the input end of the output connection circuit, and the other end of the capacitor E1 and the other end of the capacitor E2 are all grounded.

5. The ceiling lamp power supply control circuit of claim 4, wherein: the output connection circuit comprises a resistor R2, and one end of the resistor R2 is connected with the other end of the resistor R1.