The main directions of development of electronic ballasts. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Electronic ballasts. The main directions of development of electronic ballasts. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Ballasts for fluorescent lamps

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Currently, the range of electronic ballasts includes dozens of standard sizes, differing in the number and power of the lamps used with them, the presence or absence of the ability to control the luminous flux, the nature of the inclusion of lamps (with or without preheating of the electrodes), the presence of a function to protect the device and the power supply from possible emergencies. With all the apparent diversity, the circuit solutions of modern electronic ballasts from the world's leading manufacturers are, in principle, the same (Fig. 3.12).

The main directions of development of electronic ballasts
Rice. 3.12. Appearance of electronic ballasts operating on two 36 W LLs: a - manufactured by OSRAM; b-manufactured by PHILIPS

Int remains one of the leading companies in the design and manufacture of controllers for the control stage. Rectifier, USA [irf.com]. However, recently THOMSON and PHILIPS have been seriously competing with them.

OSRAM and TRIDONIC, in order to reduce the range of products, have begun to produce unified electronic ballasts designed not for one type of lamp, but for the entire series of lamps of various powers. OSRAM's Quicktronic-Multiwatt units can handle 17 sizes of fluorescent lamps from 18 to 64 W and allow over 100 combinations of linear, compact or ring lamps. But these electronic ballasts do not provide smooth control of lamp power.

Serious developments are being carried out towards the creation of lighting control systems that really solve the problems of increasing comfort and saving energy. The Austrian company TRIDONIC is promoting the so-called electronic ballasts, allowing you to control the power of the light flux. For example, devices of the EXCEL series allow you to control the power of lamps by any of four ways: simple push-button operation, light sensor, DSI digital signals and DALI digital signal.

The use of electronic ballasts with light, presence and time sensors saves up to 70% of electricity consumed for lighting. Considering that the share of fluorescent lamps in administrative premises is up to 50% of the total energy consumption in these premises, the introduction of lighting control systems can save tens of kilowatt-hours per year. Currently, these systems are very expensive and are not widely used.

Author: Koryakin-Chernyak S.L.

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