I only have single voltage power supplies. So here is how I make a comparator demonstration circuit that needs a split supply. I use one of the op amps of a dual op amp (2 op amps in one IC) to split 10V into a ±5V supply in relationship to the half way point which is declared as being the 0V reference point ground.
I use many of the integrated circuits from this kit in my videos.
- Quick 7805 voltage regulator demonstration
- Brief split-dual supply op amp voltage follower with output polarity indicator LEDs circuit
- Brief NPN PNP BJT push pull amplifier circuit fragment
- Brief PNP switch circuit that turns on with a high input voltage thanks to NPN BJT
- Brief improved NPN PNP BJT emitter follower with no BE drop circuit
- Brief single 2N3904 NPN bipolar junction transistor BJT LED flasher circuit
- Brief DPDT latching relay – HFD2 005 M L2 555
- Brief operational amplifier op amp peak detector circuit using LM358 single supply
- Brief LM334 three terminal adjustable constant current source
- Brief op amp rail splitter circuit turning single into split dual supply
- Brief LM393 open collector comparator non inverting circuit
- Brief photodiode component making a light dependent current source circuit
- Brief single supply op amp current source – LM358 operational amplifier
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