Operating Principle & Precautions for Use
Input condition
- What happen if high/low input frequency is applied?
- What is harmful effect of input line impedance?
- What is harmful effect of out of input voltage spec operation?
- Is it possible to use UPS as input source?
- Is it allowed to apply DC voltage to AC-DC unit?
- What is meaning of (L) and (N) on AC terminal?
- Is it possible to apply 400Hz input to AC-DC unit?
- How to use Three-phase EMI Filter to Single-phase input?
Load condition
- How can pulse/peak current be drawn?
- How to read derating curve?
- Why does audible sound occur with pulse load?
- What is influence of back electromotive force from motor on PSU?
- Does rated power change when output voltage adjusted?
- Cautions when connecting FG and -V.
- What is output voltage setting and accuracy?
- How to calculate external capacitor value from required hold-up time?
EMC
Attached function
- How to use remote sensing in series/parallel connection?
- What's the difference between parallel / redundancy operation?
- Show DC-DC converter application circuit
- What "Open collector" means?
- How to use Remote Control Function with -R option?
(Enclosed and Open frame type Power Supply) - Cautions in Series Operation
- Cautions in Series Operation of Power Supply with Synchronous Rectification Circuit
Others
Component Choice, Others
Component Choice
Others
- What is measurement item in TEST DATA?
- How to calculate calorific value?
- What does the content indicated on name plate mean?
- How to read lot number?
- What's QR code meaning?
(Enclosed and Open frame type Power Supply) - Ordering information for Semi-standard.
- Withstand Voltage and Insulation Resistance Test Instructions
- Why does LED light during Withstand Voltage Test?
- What is Difference between PBA series and PJA/PLA series
- What is Difference between KH and KL series
- How is the temperature measured?
Reliability
Reliability
- What is expected life of Electrolytic capacitor?
- How to Calculate Electrolytic Capacitor Lifetime in case Ambient Temperature Changing?
- What is MTBF?
- How long is expected life time in FAN built-in PSU?
- How long is the storage limitation?
- What is harmful effect of out of ambient temperature spec operation?
- What is Heat Cycle Test?
- What is MSL(Moisture Sensitivity Level)?