Fluorescent lamp tube simulation circuit model

Abstract

The fluorescent lamp lighting tube simulation circuit model disclosed in the invention is characterized in that four pins of the fluorescent lamp lighting tube is replaced by equivalent filament resistances in an simulation software circuit window. An equivalent lamp resistance and a DIAC bilateral trigger diode of the fluorescent lamp are arranged in series between two pairs of equivalent filament resistances. The invention has the beneficial effects of building a fluorescent lamp lighting tube simulation circuit model, using the filament equivalent resistances to replace the four filament cold resistances of the lighting tube, and using the equivalent lamp resistance and the DIAC bilateral trigger diode of the fluorescent lamp in series between two pairs of equivalent filament resistances to emulate a lighting tube load and an electric breakdown strength of the lighting tube. The lamp lighting tube simulation circuit has a high simulation precision. The invention can provide a parameter value with a high simulation precision for the driving of the electronic ballast circuit simulating, debugging and manufacturing of the lighting tube. The invention is beneficial to improving the efficiency of technicists of researching departments on the optimization design and manufacture debugging of lamp circuit.

Description

technical field [0001] The invention relates to a circuit simulation model, in particular to a fluorescent lamp tube simulation circuit model modeled and simulated in circuit simulation software simulation. Background technique [0002] In order to achieve a certain accuracy, the simulation circuit model of the fluorescent lamp tube must be used in the simulation analysis of the electronic ballast circuit of the fluorescent lamp. Motorola Corporation of the United States has a circuit simulation model for the lamp tube. The circuit is a resistor connected in series with two voltage regulator tubes in opposite directions. There are several problems in using this circuit simulation model as the equivalent circuit simulation of the fluorescent lamp tube. The lamp circuit model does not have four filament cold resistances, and there are no components that imitate the breakdown voltage of the filament, and the actual lamp specific circuit does not have a voltage regulator tube. U...

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Problems solved by technology

Motorola Corporation of the United States has a circuit simulation model for the lamp tube. The circuit is a resistor connected in series with two voltage regulator tubes in opposite directions. There are several problems in using this circuit simulation model as the equivalent circuit simulation of the fluorescent lamp tube. The lamp circuit model does not have four filament cold resistances, and there are no components that imitate the breakdown voltage of the filament, and the actual lamp specific circuit does not have a voltage regulator tube. Using a voltage regulator tube will cause power loss, which will affect the accuracy required for circuit simulation. Even using Motorola's lamp circuit simulation model, the simulation accuracy is not high, which has a great impact on the optimization of the circuit design of electronic ballasts for fluorescent lamps

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