1 / 9

Component Notes

Component Notes. Resistors. LED. IC Socket. Diode. Transistor Symbols. Example Transistor Driver Circuits.

posy
Download Presentation

Component Notes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Component Notes Resistors LED IC Socket Diode

  2. Transistor Symbols

  3. Example Transistor Driver Circuits Lo Side Drive (NPN) Load La1 is connected to the +V supply (Hi) and then switched to ground (Lo) to turn on. (Positive Logic – High on the input turns the load on.) See far upper right example. Hi Side Drive (PNP) Load La2 is connected to ground (Lo) and then switched to +V (Hi) to turn on. (Negative Logic – Lo on the input turns the load on.) Lo side driver relay driver Darlington pair transistors are used in applications where Very heavy current loads need to be controlled. The darlington Configuration offers much higher current gain because the hfe of the device is the product of the hfe of the two transistors TR1 and TR2 . Opto-Isolators offer isolation which is not easily obtainable with any other device. When controlling very high voltages this provides Isolation protection for sensitive devices such as micro-controllers.

  4. Wire Ampacity Table

More Related