476 EMBEDDED SYSTEMS
the internal SMP switch is on. When this switch is turned off , a fl yback mode occurs
and the inductor energy is released into the bypass capacitor. is is done in a periodic
fashion (1.3 MHz), charging the capacitor and thus the required value of power supply
voltage is obtained at the VDD point. Note that the direction of the diode is such as to
get the capacitor to be charged to a positive voltage.
Note: e value of the battery voltage may go as low as 1V, but once the circuit is
switched off , there is no guarantee of this set up being reliable, unless the battery voltage
is at least 1.1V.
12.10 | PSoC3 and PSoC5
ese two versions are the advanced versions of PSoC, to be used for more advanced
applications. As mentioned ...