Datasheet
Table Of Contents
- Figure 1. STEVAL- ISA115V1 demonstration board
- 1 Adapter features
- 2 Circuit description
- 3 Bill of material
- 4 Layout
- 5 Testing the board
- 6 Functional check
- 7 Feedback loop calculation guidelines
- 8 Thermal measurements
- Figure 32. Thermal measurement @ VIN = 80 VAC, full load (130 mA) Rbl = 8.2 kohm
- Figure 33. Thermal measurement @ VIN = 115 VAC, full load (130 mA) Rbl = 8.2 kohm
- Figure 34. Thermal measurement @ VIN = 230 VAC, full load (130 mA) Rbl = 8.2 kohm
- Figure 35. Thermal measurement @ VIN = 265 VAC, full load (130 mA) Rbl = 8.2 kohm
- 9 EMI measurements
- Appendix A Test equipment and measurement of efficiency and light load performance
- 10 References
- Revision history
Test equipment and measurement of efficiency and light load performance AN4260
26/29 DocID024275 Rev 2
After this warm-up period, the AC input power is monitored for a period of 5 minutes to
assess the stability of the UUT. If the power level does not drift by more than 5% from the
maximum value observed, the UUT can be considered stable and the measurements can
be recorded at the end of the 5-minute period. If AC input power is not stable over a 5-
minute period, the average power or accumulated energy is measured overtime for both AC
input and DC output.
Some wattmeter models allow the integration of the measured input power in a time range
and then measure the energy absorbed by the UUT during the integration time. The
average input power is calculated dividing by the integration time itself.