1 Voltage regulator tutorial & USB gadget charger circuit
A beginner tutorial on linear regulators such as the 7805, ending with a USB charger circuit; suggested to people powering an Arduino or Raspberry Pi.
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A beginner tutorial on linear regulators such as the 7805, ending with a USB charger circuit; suggested to people powering an Arduino or Raspberry Pi.
An Afrotechmods tutorial on building a variable linear power supply around the LM317, often suggested as a first analogue project.