DocID026737 Rev 1

13/16

UM1806

Use case with PV energy harvester

16

Step 2: Connection of the load for 100 ms

PB2 monitors the current in the EFL700A39. The load is mainly supplied with super cap

energy at the same time the EFL700A39 also participates. Voltage drops consequently from

some tens of mV.

Step 3: At the very beginning of disconnection of the load

PB2 monitors the current in the EFL700A39. The EFL700A39 is recharging the super-cap,

so current is still negative but reduces as the super-cap gets charged.

Figure 14. Step2 schema

Figure 15. Step2 picture

Power

management

PV

Rload

Super

cap

100 ms

« ON »

EFL700A39

Figure 16. Step3 schema

Figure 17. Step3 picture

Power

management

PV

Rload

Super

cap

10 s

« OFF »

EFL700A39