China's energy-saving lamps start the Argentine energy-saving campaign (Figure)


The Argentine government and enterprises began to promote the use of energy-saving lamps on a large scale nationwide on the 9th, which started the first taunting campaign of this South American energy-saving campaign. The first batch of 5 million energy-saving bulbs distributed free of charge were made in China.


On January 9, a staff member of the Argentine Power Company (left) distributed energy-saving light bulbs to low-income families free of charge in the central city of Rosario.


On January 9, a staff member of the Argentine Power Company (right) issued energy-saving light bulbs to low-income families free of charge in the central city of Rosario.

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Bi Directions Thyristor (Triac)

Bi Directions Thyristor (Triac) is equivalent to the antiparallel connection of two unidirectional thyristors, but only one control pole.
Bidirectional thyristors are made of N-P-N-P-N five-layer semiconductor materials, and three electrodes are also derived from the outside. Its structure is shown in the figure. Bi-directional thyristor volt-ampere characteristic curve Since the forward and reverse characteristics of the bidirectional thyristor are symmetrical, it can be turned on in any direction and is an ideal AC switching device.

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