CEO, Digital Power Systems
Introduction
A reliable power supply is essential for ensuring the smooth operation of electronic devices. If you have already experienced power supply failures, you know first-hand that repairs and maintenance are time-consuming and expensive. That is probably why you are on this page. We will show you innovative power supply approaches to prevent these failures in the future.
Root Causes of Failure
Primary failure causes can usually be grouped into three categories, which are often interrelated:
- Short-lived components - especially electrolytic capacitors
- Faulty design - particularly poor component selection by the developer
- Incorrect application - for example, excessive operating temperatures
Failures Caused by Components
One of the most common reasons for power supply failures is defective electrolytic capacitors. These capacitors contain a liquid electrolyte that - put simply - evaporates over time. The hotter the electrolytic capacitor, the faster the evaporation. Once the electrolyte has evaporated, the capacitor loses its capacitance, and the power supply can no longer operate correctly.
To address this issue, Digital Power Systems has developed power supplies without electrolytic capacitors. These are available as both custom and standard products. This technology has demonstrated lifetimes exceeding 70 years.
Watch this video for an explanation of the technology:
Failures Caused by Faulty Design
Components require a certain margin below their maximum ratings during normal operation. In technical terms, this is known as derating. Typical failures occur in transistors or metal oxide varistors. These are difficult for outsiders to trace. Some manufacturers provide reliability test reports upon request.
Tips for Avoiding Service Costs
Service costs related to power supply failures can be substantial. Often, the cost of a power supply (€30-100) is on the same order as the travel costs for an on-site technician alone. Invest in manufacturers that use high-quality components to maximise the lifetime of your power supply.
A reliable power supply is the best investment you can make to keep your devices in perfect condition and minimise downtime.