Repairing switching power supplies; One of them is quite unusual

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Published on Sep 1, 2021

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In this video we repair two plug-in power supplies. In the first one, the no-load voltage is a bit too high, and the second one is unstable, and sometimes even under light load the voltage drops from 5V to 1V. You'll find out how the repair went by watching the episode ;) Don't want to miss new videos? Subscribe to the channel! My most interesting videos: Coil inductance meter: • Coil inductance meter; Simple and... Conversion of a switching power supply to a 36V power supply: • Conversion of a switching power supply. How ... Repair of an energy-saving light bulb: • Repair of an energy-saving light bulb. Damage... Simple metal detector: • How to make a metal detector? [DIY #66] Reliable step-down converter: • Simple step-down converter with protection... ESR meter: • How to make an ESR meter for a capacitor... Repair of a 12V 5A power supply: • Repair of a 12V switching power supply; Sp... Long-Range Bug: • FM Transmitter with Sensitive Microphone, Plus... Data Transmission, Multiplexing: • Data Transmission on One Wire Without M... LED Light Bulb Repair: • LED Light Bulb Repair; How It's Constructed... Good Sounding FM Radio: • How to Make a Simple FM Radio with Amplifier... Plug-in Power Supply Repair: • Switching Power Supply Repair; How It Works... Simple FM Radio: • How to Make a Simple FM Radio? Receiver... Portable Regulated Power Supply: • Reliable Regulated Power Supply with Fuse... FM Transmitter: • Long-range FM Transmitter, Designed... Simple Flyback Power Supply: • How to Build a Simple Power Supply in Topolo... Dummy Load for Testing Power Supplies: • Dummy Load for Testing Power Supplies... Changing the Voltage in a Switching Power Supply: • Changing the Output Voltage in a PSU... Reverse Polarity Protection: • Protecting Circuits from Reverse Polarity... MPPT Controller for Solar Panels: • Solar Charger, Charge Controller... Building a Switching Power Supply: • How to Build a Power Supply in the Flyback Topology... Laboratory Power Supply: • Converting a Switching Power Supply to a La... 5V Charger Repair: • Repairing a Charger, 5V Power Supply; LCD monitor repair: • How to repair an LCD monitor, what is in it... ATX power supply repair: • How to repair an ATX power supply, what to look for... Battery rectifier: • Automatic rectifier, charger for... Short circuit protection: • Current limiter, overload protection... Step-up/down converter: • Simple and universal control converter... Simple regulated power supply: • Switching power supply conversion to re... 100W converter from 12V to 230 or 325V: • Converter from 12V to 230 or 325V, m... LED oscilloscope: • LED oscilloscope (part 1): introduction... Simple and efficient audio amplifier: • Simple but efficient audio amplifier... Induction heater, high voltages on ZVS: • ZVS circuit, i.e. induction heater... PWM controller for motors and bulbs: • Regulator PWM for Motors and Light Bulbs ... Playlists: Electronics Basics: • Electronics Basics DIY: • DIY Converters: • Converters Repairs: • Repairs

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