7.3.1 Efficiency Measurements

For accurate measurements of the efficiency at varying load conditions, monitor the actual VIN and VOUT across the capacitor from the available test point VIN and test point VOUT.

Figure 7-11. Efficiency Test Setup

The efficiency measurements are recorded in the graph below. Each line color represents different test cases for measuring efficiency on the CIP Hybrid Power Starter Kit.

  1. The blue line shows the total efficiency of the CIP Hybrid Power Starter Kit with the power LED1 on, test LED2 and LED3 off, and the on-board debugger connected.
  2. The red line shows efficiency without the high-side sense shunt resistor.
  3. The green line shows the efficiency of the power train and controller section without the on-board debugger and the high-side shunt resistor.
Figure 7-12. Efficiency Measurements