Chapter 5 Dissertation Conclusion and Future Work
5.2 Future Work
In this dissertation, we only examine the performance difference between two
converters adopting respectively the proposed and the conventional feedback topology.
It is encouraged to incorporate this proposed feedback method with other techniques,
such as the high voltage start-up, the low-standby-power EMI capacitor discharging
method, and a low-power controller, into a power supply unit to see how actually
low-standby-power it can achieve. For example, a low-power battery charger adopting
all aforementioned techniques would probably meet the strictest standard of 30-mW
standby power.
Another point that deserves improving is the error amplifier inside the reverse-type
shunt regulator. Originally designed with the two-stage operational amplifier structure
for simplicity and large output swing, it can be modified and implemented with an even
lower-quiescent-current circuit, such as a class AB amplifier. The lower quiescent
current is consumed, the lower standby power can be achieved.
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