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NE555, LM7805, and MC34063

Michael Harem Raymundo

Jul 25, 2017
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Hello.
I'm looking for a replacement for these ICs because we need to submit a project proposal tomorrow, July 26, on our Electronics 1. However, we're not allowed to use any integrated circuits. I'm planning on making a project that does a wireless energy transfer. Thanks,
 

bushtech

Sep 13, 2016
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555-IC-Timer-Block-Diagram.jpg
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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25,510
The 7805 can probably be replaced by a zener, a resistor, and a transistor.

The 555 can be used to do so many things that weed have to see the circuit to comment.

The 34063 is a switchmode regulator? Again, show us the circuit and consider whether you can use a linear regulator.

Mind you, because this is homework, weed probably ask you to do most of the work. And since you've left it so late...
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Bushtech, that doesn't look quite right. The three resistors go from Vcc to gnd.
 

bushtech

Sep 13, 2016
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*steve*
I just pulled an image from the net to show him what he's up against if he needs to build an analog version by tomorrow
 

bushtech

Sep 13, 2016
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but, yes, the bottom leg should go to trig. not earth, well spotted and 0/10 for circuitstoday
 

Alec_t

Jul 7, 2015
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Building a discrete-parts equivalent of the MC34063 will be an even greater challenge than the 555!
 

BobK

Jan 5, 2010
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You should not need any of those for wireless energy transfer. You basically need an oscillator, an amplifier, and a coil fot the transmitter, and a coil, capacitor, and diode for the receiver.

Bob
 
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