Classroom blackboard LED lamp band driving circuit possessing protection effect

An LED light strip and protection technology, applied in the field of education, can solve the problems of low circuit safety and reliability, lack of circuit protection function, complex driving circuit structure, etc., to achieve low cost, high safety and reliability, The effect of reducing hardware costs

CN108055731APending Publication Date: 2018-05-18广州爱易学智能信息科技有限公司
2 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-05-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a classroom blackboard LED lamp band driving circuit possessing a protection effect. The circuit comprises a bridge type rectification circuit, a voltage detection circuit, a power supply circuit, a microcontroller and a power conditioning circuit. A positive output terminal of the bridge type rectification circuit is connected to an input terminal of the voltage detectioncircuit, an input terminal of the power supply circuit and a positive input terminal of a blackboard LED lamp band. An output terminal of the voltage detection circuit and an output terminal of the power supply circuit are connected to the microcontroller. An output terminal of the microcontroller is connected to a signal control terminal of the power conditioning circuit. A negative output terminal of the bridge type rectification circuit is connected to an input terminal of the power conditioning circuit. An output terminal of the power conditioning circuit is connected to a negative input terminal of the blackboard LED lamp band. The voltage detection circuit comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a first diode, a first power supply and a first voltage output terminal. In the invention, the circuit structure is simple, cost is low, and safety and reliability of the circuit are high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of education, in particular to a classroom blackboard LED light strip driving circuit with protective functions. Background technique

[0002] Classroom blackboard LED light strip is a lamp professionally used in classroom blackboard lighting. It is positioned in ordinary classrooms, music classrooms, natural classrooms, science and technology classrooms, psychological consultation rooms, offices, meeting rooms, art rooms, laboratories and other environments, and can replace the original lighting places using fluorescent tubes. The use of environmentally friendly high-tech LED light source and special optical design makes the lamp an integrated lamp with anti-glare, high energy saving, corrosion resistance and beautiful curve shape. LED light strips on blackboards in classrooms need to be driven by a drive circuit to work normally. The drive circuit structure of traditional blackboard LED light strips in classrooms i...

Examples

Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] In the embodiment of the protective classroom blackboard LED light strip drive circuit of the present invention, the structure diagram of the protective classroom blackboard LED light strip drive circuit is as follows figure 1 shown. figure 1 Among them, the classroom blackboard LED light strip drive circuit with protective function includes a bridge rectifier circuit 1, a voltage detection circuit 2, a power supply circuit 3, a microcontroller 4 and a ...