Control device and its control method for reducing average driving current of controllable silicon
A driving current and control device technology, which is applied to the control device and its control field to reduce the average driving current of the thyristor, can solve the problems of large driving current, high cost of the circuit system, consumption, etc., and achieve simple control and reduce the cost of the circuit system , the effect of improving economic efficiency
Inactive Publication Date: 2008-09-17
MIDEA GRP CO LTD
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However, the disadvantage of this driving method is that in the whole process of maintaining the conduction of the thyristor, it needs to consume a large driving current, and the cost of the circuit system is also high.
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[0021] The principle block diagram of the control device of the present invention is as figure 1 As shown, it includes a high-voltage power input module 1, a direct current generation module 2, a microprocessor IC module 3, a power supply zero-crossing acquisition module 4 and a thyristor control module 5, wherein the output terminals of the high-voltage power input module 1 are respectively connected to The input end of the direct current generation module 2 is connected and connected with the zero-crossing acquisition module 4 of the power supply, and the output end of the direct current generation module 2 is respectively connected with the microprocessor IC module 3, with the zero-crossing acquisition module 4 of the power supply and with the thyristor control module 5 connection, the output end of the power zero-crossing acquisition module 4 is connected with the input end of the microprocessor IC module 3, the output end of the microprocessor IC module 3 is connected with...
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The present invention provides a control device for reducing the average driving current of the controlled silicon and the controlling method thereof. The invention comprises a high-voltage electricity input module (1), a direct current generating module (2), a microprocessor IC module (3), an electric power zero crossing collecting module (4) and a controlled silicon control module (5). As the invention adopts a microprocessor IC module for outputting a controlled silicon driving signal to the controlled silicon control module according to the electric power zero crossing signal generated by the electric power zero crossing collecting module, and controls the controlled silicon control module to output a conducting time of the controlled silicon driving signal, the continuous conducting of the controlled silicon is realized in the conducting time, and the microprocessor IC module controls the controlled silicon control module to close a controlled silicon driving signal except the conducting time thereby reducing the average driving current, effectively saving the cost and increasing the economic benefit. The average driving current of the control device of the invention is small and the cost of the circuit system can be reduced. The control method of the invention is simple, convenient and practical.
Description
Technical field: [0001] The invention relates to a control device and a control method thereof for reducing the average driving current of silicon controlled silicon, and belongs to the transformation technology of the control device for reducing the average driving current of silicon controlled silicon and the control method thereof. Background technique: [0002] Thyristors are often used as non-contact switches and loads for power supplies and circuits in AC circuits. When in use, as long as the corresponding voltage is applied to the positive and negative poles, and a conduction trigger signal is applied to the control pole, the positive and negative poles can be turned on and current will flow. At the same time, after the thyristor is turned on, if there is current flowing between the positive and negative electrodes, even if the trigger signal is turned off, the thyristor will not be turned off immediately, and can only be turned off when the voltage of the positive an...
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IPC IPC(8): H03K17/725
Inventor 黄兵李新义卢超齐
Owner MIDEA GRP CO LTD