Voltage in is voltage out when it comes to a voltage follower using an op amp. This may seem pointless at first, but a weak signal voltage can control the output of the op amp without having the signal’s voltage being thrown off.
Updated kit of what I have. An assortment of commonly used integrated circuits (IC). I made a lot of videos with them.
- Brief single supply op amp current source – LM358 operational amplifier
- Brief photodiode component making a light dependent current source circuit
- Brief LM393 open collector comparator non inverting circuit
- Brief LM393 comparator controlling NPN BJT switch with active buzzer load circuit
- Brief op amp rail splitter circuit turning single into split dual supply
- Brief Schmitt trigger LM358 op amp comparator circuit
- Brief inverting op amp comparator circuit – LM358
- Brief comparator circuit using single supply op amp and voltage dividers – LM358
- Quick zener diode improved by NPN BJT emitter follower circuit – 2N3904 bipolar junction transistor
- Brief passive buzzer controlled by 555 timer astable multivibrator set by light dependent resistor LDR circuit
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