We’ve all come across pesky situations where we need a slightly higher voltage than our power supplies can provide. We need 12 volts, but have only a 9 volt battery. Or maybe we have a 3.3V supply when our chip needs 5V. That too, in most cases, the current draw is quite decent.
Eventually, we ask ourselves the question, is it possible to convert one DC voltage to another?
Lucky for us, the answer is yes. It is possible to convert one DC voltage to another, however the methods are a slightly on the clever side.
Learn about the boost converters in this article: https://components101.com/articles/boost-converter-basics-working-design
The HLK-PM01 is a small size low cost AC to DC converter which can take in 110V/220V AC at 50/60 Hz and give 5V 3W output. The module is can be used in designs which run on 5V and needs to be powered form the AC mains.
Learn about mylar capacitors! What are they and how to use them? https://components101.com/capacitors/mylar-capacitor
A Trimpot is another type of potentiometer that comes in small package. It has three leads and can be easily mounted on breadboard or perf board for quick prototyping. The value of the pot can changed by varying the knob on top of it.
Learn more about trimpots: https://components101.com/resistors/preset-potentiometer-trimpot-pinout-datasheet
LM565 Phase Locked Loop IC
LM565 is a general purpose PLL (Phase Locked Loop)
IC designed for demodulation, frequency multiplication and frequency
division. The device mainly consists of two components, one is voltage
controller oscillator and other is phase detector. In which VCO is
designed for highly linear operation and PD with good carrier
Know more about LM565 IC: https://components101.com/ics/lm565-pll-pinout-datasheet