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Halogen lamp light modulation apparatus based on EIB protocol

A European technology for installing bus and dimming devices. It is applied to lighting devices, lamp circuit layout, light sources, etc., and can solve problems such as low reliability, easy aging of components, and complicated circuits.

Inactive Publication Date: 2012-05-02
ZHEJIANG UNIV
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  • Claims
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Problems solved by technology

[0003] The traditional dimming device realizes dimming by adjusting the conduction time, and a large number of high-order harmonics are fed back into the power grid, causing great pollution to the power grid
Although some dimming devices implement power factor correction through analog devices, such as SG3524, etc., plus an operational amplifier circuit on the periphery to form an analog PI regulator, they need external resistors, capacitors, operational amplifiers and other units, the circuit is more complicated, and the control accuracy is not high. , components are prone to aging, so its reliability is not high

Method used

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  • Halogen lamp light modulation apparatus based on EIB protocol
  • Halogen lamp light modulation apparatus based on EIB protocol
  • Halogen lamp light modulation apparatus based on EIB protocol

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Embodiment Construction

[0013] The halogen lamp dimming device is composed of a bus coupling unit and an application module. The bus coupling unit realizes communication with the bus and receives dimming messages from the bus. The application module consists of a power factor correction part and a dimming realization part. The power factor correction link adopts the boost type power factor correction main circuit, adopts the continuous working mode of the inductor current, and uses the average current control. Use the microprocessor 68HC08 to sample the input voltage, sample the input current, and sample the output voltage, adopt voltage and current double-loop control, and output duty cycle variable through TCMP1, PWM wave with a frequency of 10KHz to drive the switching tube. On and off to achieve power factor correction. A power resistor R2 is connected in series with the halogen lamp to feedback and indicate the working current of the halogen lamp. The voltage is sent to the microprocessor 68HC0...

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Abstract

The disclosed light modulator for halogen lamp based on European assembly bus comprises: a bus coupling unit with 68HC08 as MPU to communicate with bus and receive modulating message to modulate lamp reference voltage, and an application module with a power factor correction loop and a voltage modulation loop to adjust lamp average voltage by PWM according to the reference voltage for brightness control. Compared with prior art, this invention is simple and reliable, and can improve factor coefficient by PFC loop.

Description

technical field [0001] The invention relates to a dimming device for a halogen lamp based on the European installation bus protocol. Background technique [0002] European Installation Bus (EIB) is a dominant home building automation standard in Europe. It is widely used in all branches of home building fields such as lighting, security, ventilation temperature control, and time event management. It includes complete lighting control functions. Halogen lamps have the characteristics of high brightness, long life, and high luminous efficiency, and are widely used in stage film and television lighting, shopping malls and home decoration lighting and other fields. Develop a halogen lamp dimming device based on the European installation bus protocol, which can not only meet the needs of scene control functions, but also save precious electric energy. [0003] The traditional dimming device realizes dimming by adjusting the conduction time, and a large number of high-order harmo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H05B39/04
CPCY02B20/14Y02B20/00
Inventor 封宁波吴明光姚帅
Owner ZHEJIANG UNIV
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