Week #14: (12/7-11) MOSFETs & H-Bridges, Thyristors & SCRs

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rjagodowski
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Week #14: (12/7-11) MOSFETs & H-Bridges, Thyristors & SCRs

Post by rjagodowski »

We'll finish up some of the topics on MOSFETs we didn't get to in Week #13.

The MOSFET as a Switch.

MOSFET Switching Tutorial Make special note of the H-Bridge which is commonly used for DC Motor Control.

Here's a YouTube Video on H-Bridge Circuit Construction

Here are the key schematics used in the H-Bridge Circuit used in the video above. Note that Darlington Pair (High Beta) Bipolar Junction Transistors are used in this implementation in stead of MOSFETs.
H-Bridge Schematic for YouTube Video.png
H-Bridge Schematic for YouTube Video.png (135.78 KiB) Viewed 245 times
Current Limit & LED Circuit for YouTube Video.png
Current Limit & LED Circuit for YouTube Video.png (65.42 KiB) Viewed 245 times
Current Limit & LED Circuit for YouTube Video.png
Current Limit & LED Circuit for YouTube Video.png (65.42 KiB) Viewed 245 times
Infineon Power MOSFETs for Automotive Use

Here are some tutorial materials we covered BEFORE the SCR Lab:

Shockley Diodes

SCRs: http://www.wisc-online.com/Objects/View ... ID=SSE4803 and http://www.wisc-online.com/Objects/View ... ID=SSE4903, also here: http://www.allaboutcircuits.com/vol_3/chpt_7/5.html

Additional Thyristor Circuits - DIACs and TRIACs.

DIACs: http://www.wisc-online.com/Objects/View ... ID=SSE7706, also here: http://www.allaboutcircuits.com/vol_3/chpt_7/4.html

TRIACs: http://www.wisc-online.com/Objects/View ... ID=SSE7406 and http://www.wisc-online.com/Objects/View ... ID=SSE7506 (special note on slide 6 showing the power controlling waveforms), also here: http://www.allaboutcircuits.com/vol_3/chpt_7/6.html

Here's a YouTube Video on Triac Triggering


Voltage Regulators, DC-to-DC Converters, Linear & Switching Power Supplies


Understanding How Voltage Regulators Work

Here's a link on What is a DC-to-DC Converter?
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