| 11. | Most phase-fired controllers use thyristors or other solid state switching devices as their control elements.
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| 12. | The most common switching devices use TFTs, i . e . a CdSe semiconductor material.
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| 13. | In another former cloth factory, special switching devices are made, which have been successfully marketed worldwide.
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| 14. | The main advantage of PWM is that power loss in the switching devices is very low.
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| 15. | Magnetic contacts were the first contactless switching devices.
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| 16. | Specialized gas-filled tubes such as krytrons, thyratrons, and ignitrons are used as switching devices in electronics.
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| 17. | This apparatus cools the electrical switching device.
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| 18. | "' Telegraph key "'is a general term for any switching device used primarily to send Morse code.
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| 19. | The power rating of switching devices varies depending on the circuit voltage as well as the current.
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| 20. | A speedy switching device is an NPN avalanche transistor fitted with a coil between base and emitter.
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