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Modular protector of electronic positioner

An electronic ballast and protection device technology, applied in the field of modular protection devices, hybrid or integrated (Integrated Circuit), can solve problems such as unsatisfactory luminous power, current harmonic interference, heat accumulation faults, etc.

Active Publication Date: 2007-06-20
IND TECH RES INST
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Problems solved by technology

[0007] Then there is a known technology that replaces the inductive ballast circuit with an electronic ballast, which can improve some of the above-mentioned shortcomings, but the electronic ballast still has many shortcomings, such as: prone to heat accumulation problems, luminous power is still not ideal, It is easy to cause problems such as current harmonic interference, so how to effectively improve the electronic ballast of fluorescent lamps is actually a technical issue that needs to be discussed urgently

Method used

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  • Modular protector of electronic positioner
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Embodiment Construction

[0046] Relevant detailed content and technology of the present invention, cooperate accompanying drawing to illustrate as follows:

[0047] The present invention is a modular protection device for an electronic ballast. The modular protection device is set in the circuit system of a product with an electronic ballast, and protects the electronic ballast when the electronic ballast generates an overcurrent or an overtemperature state. First, please refer to FIG. 1 , which is a schematic diagram of a circuit structure of a modular protection device for an electronic ballast according to the present invention.

[0048] The modular protection device 10 of the electronic ballast of the present invention may include a determination unit 11, a logic gate 12, a voltage stabilizer 13, a filter 14, a rectifier 15, a protection controller 16, a voltage dividing unit 17, a current limiting unit 18 and a gate Pole signal controller 19, wherein the determination unit 11 may include a temper...

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Abstract

The invention is used for providing protection for electronic ballast based on both over current status and over temperature status. When system starts operation, if the current transformer (CT) detects the current signal level is lower than a safe value, the protective device will not work; if the current signal level is higher than a safe value, then the ballast is considered at over current status, at this time the protective device will be started to reduce the load of working system; if the temperature of any component in system is detected to over the safe value, the protective device will be also started.

Description

technical field [0001] The invention relates to a protection device for an electronic ballast, in particular to a protection device for an electronic ballast that can be designed as a hybrid (Hybrid) or integrated (Integrated Circuit; IC) package, especially a protection device that can simultaneously detect A modular protection device for electronic ballasts that measure the two signals of over-current and over-temperature as the basis for starting protection. Background technique [0002] Fluorescent lamps can be described as the most convenient lighting equipment. From the perspective of power saving and environmental protection, they are actually energy-saving and economical lighting lamps. However, unlike ordinary light bulbs, fluorescent lamps can be started directly, and must be activated through a starting circuit. Drive, the general known technology uses the inductive ballast circuit to start the fluorescent lamp, but this design has the following disadvantages: ...

Claims

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Application Information

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IPC IPC(8): H05B41/292H05B41/298
CPCY02B20/208Y02B20/00
Inventor 陈燧宗李丽玲
Owner IND TECH RES INST
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