Table 2.
The power consumptions of each component of the wireless and powerless sensing node and the design target for a magnetic self-powered generator
| Item | Power supply | |
|---|---|---|
|
| ||
| MEMS accelerometer | 2.8 V | Power consumption: |
| 1.1 mA | 3.08 mW | |
| Signal processor | 4 V | Nominal power consumption: 21.6 mW |
| 1.8 ∼ 9 mA | Transient power max: 36 mW | |
| 4 V | 10 mW processing power+ 0.41 ∼ 4.4 | |
| EM pulse communication module | 2.6 ∼ 3.6 mA | mW power dissipations estimated by the method described in section 2.3. |
|
| ||
| Total | 35.08 mW (Nominal) | |
| 53.48 mW (Max) | ||
|
| ||
| Max Current | 13.7 mA | |
| Power supply design target | 53.48 mW(Max) × 2 (S.F)= 107 mW | |