Table 1.
The power-budget analysis of the system.
| Energy Harvesting (Power Generation) * | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Electromagnetic Energy Harvester | Total | |||||
| V (Volt) | 8.19 | - | |||||
| I (mA) | 28.1 | - | |||||
| P = I*V (mW) | 230.14 | 230.14 | |||||
| Power Consumption | |||||||
| Parameter | Voltage Regulator (LM7806) | Voltage Dropdown Diodes | Differential Amplifier | Voltage Regulator (LM1086) | Accelerometers | Wireless Module | Total |
| V (Volt) | ΔV = 2.19 | ΔV = 0.66 | 5.34 | ΔV = 2.04 | 3.3 for each | 3.3 | - |
| I (mA) | 27.7 | 27.2 | 0.4 | 26.7 | 0.45 for each | 25.35 | - |
| P = I*V (mV) | 60.66 ** | 17.95 ** | 2.14 | 54.47 ** | 4.47 *** | 83.66 | 223.35 |
* The system is operated with the spindle rotational speed of 1650 rpm, the power is measured after bridge rectifier
** Power consumptions including thermal dissipation
*** Total power consumption of three accelerometers