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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Electronic ballasts on discrete elements. An interesting circuit electronic ballast on discrete elements for compact fluorescent lamps. 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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An interesting circuit solution for an electronic ballast can be found in CFL Vinnitsa plant. The appearance of the Vinnitsa ballast is shown in fig. 3.47. The schematic diagram is shown in fig. 3.48.

An interesting circuit electronic ballast on discrete elements for compact fluorescent lamps
Rice. 3.47. Appearance of Vinnitsa ballast

An interesting circuit electronic ballast on discrete elements for compact fluorescent lamps
Rice. 3.48. Schematic diagram of the ballast

Of the features of circuitry, it should be noted the chain of preheating of the cathodes, implemented on the elements RK, VD8-VD11. This ballast is assembled on high-quality imported elements, with the exception of the resistor R1. Since the ballast is the brainchild of the German-Ukrainian cooperation, we decided to use the MLT-1 resistor.

Unfortunately, the resistive layer does not withstand impulse loads and burns out; this type of resistor is not recommended for use in this circuit. Any 5-15 ohm wire resistor should be used.

Author: Koryakin-Chernyak S.L.

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