Use a 555 timer as a switch-mode power supply
555 Timer Brushless DC Motor Driver Board - Hackster.io
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class d - Using a NE555 for 12V boost to 24V to power an amplifier - Electrical Engineering Stack Exchange
555 Timer As A Switch-Mode Power Supply under Repository-circuits -39765- : Next.gr
555 timer based boost converter with adjustable output voltage
A Simple DC-DC Boost Converter Circuit using 555 Timer IC
555 Timer
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555-controlled Switching Mode Power Supply | Hackaday.io
Use a 555 timer as a switch-mode power supply - EDN
Voltage Controlled Switch using 555 Timer - EEWeb
Simple DC-DC Converter using 555 Timer IC (7.5-35V)
ON-OFF Switch circuit using a 555 timer (PCB) - Electronics Area
555 timer flyback driver circuit problem | Electronics Forum (Circuits, Projects and Microcontrollers)
9V Dual Power Supply LM555
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LEAP#415
switch mode power supply - 555 timer boost converter doesn't meet spec - Electrical Engineering Stack Exchange
NE555 Monostable not turning off - General Electronics - Arduino Forum
Add one resistor to give bipolar LM555 oscillator a 50:50 duty cycle - EDN
555-controlled Switching Mode Power Supply | Hackaday.io
TLC555-Q1: Delayed power on switch - Clock & timing forum - Clock & timing - TI E2E support forums
How a 555 oscillator can ignore power supply and temp variations - EDN Asia
