Repair of a high-power laboratory power supply

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Published on Dec 15, 2024

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In this episode we are repairing a Voltlcraft VSP 2405 regulated power supply with a total power of 400W. The initial start-up of the power supply turned out to be quite effective, and right after it we had to move on to removing the first fault. And what exactly was the fault and whether there were more, you will find out by watching the episode! Fragments with electrolyte explosions: • Blowing up BIG capacitors! =============== Table of contents ============== 0:00 Introduction and straight away the steam locomotive 0:41 Analysis of the first fault 3:21 Test after PFC repair 5:13 Further problems with the system 7:29 That's not the end of the repairs... 9:25 I wanted too much and I screwed something up 11:10 A look at the repaired structure 12:38 Some tests 16:15 Summary, ending ========================================= Most frequently viewed: Movie player with VFD display: • How I turned an old display into ... Extending the life of LED bulbs: • How to extend the life of LED bulbs? Arduino from electronic scrap: • Free Arduino from junk, how to make... Changing the charging current in a battery rectifier: • Changing the charging current in a rectifier ... Phone data recovery: • Data recovery from a dead phone. I... DIY graphics card: • Color graphics card built from... Checking electronic components with an ordinary meter: • Checking electronic components... Pure sine wave inverter: • How to make an inverter with a pure sine wave... Repairing a large switching power supply: • Repairing a switching power supply; What... Simple 12V to 230V converter: • Converter from 12V to 230V, simple and ... Repairing a 12V switching power supply: • Repairing a 12V switching power supply; Sp... ATX power supply repair: • Repairing an ATX power supply. How is it built... Simple air ionizer: • How to make an air ionizer? ZVS, ... Triac power regulator, dimmer: • How to make a power regulator on a triac? ... Adjustable voltage regulator on a mosfet: • How to make an adjustable regulator on a... Biggest projects: Movie and music player: • I built my own movie player with... Audio codec: • I made a better codec than MP3! P... Stereo sound card: • Sound card built from scratch. Go... Network power meter, energy meter: • Network power meter, energy meter... LCD display controller: • Graphics card for LCD displays. ... Programmer for GAL and PALCE: • I built my own programmer for GAL ... Computer on Z80: • Computer on Z80 built from scratch, pr... Universal parallel memory programmer, Easy Prog: • How to build a universal programmer ... 8-bit computer: • 8-bit computer Pure sine wave inverter: • How to make a pure sine wave inverter... Programmable 8x8 display: • How to make an 8x8 display controlled ... High-power induction heater: • Efficient induction heater, circuit... Remodeling a large TV converter: • Remodeling a switching power supply. How ... DIY oscilloscope: • DIY oscilloscope

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