Abstract:
Rapid change in technology and growing trends in electronics devices, markets
are looking for efficient devices with compactable size. Several digital devices and
charging infrastructures requires dynamic voltage supply level in single module.
To fulfill all desired requirements is to add an individual supply source for each
device in module, but this would lead towards a large PCB size and more cost. To
satisfy the industrial & commercial needs, an alternative is the use of SIMO DC
converter having single inductor and multiple output channels. The core aim of
current research is to implement an efficient controller design of single inductor
multiple output (SIMO) DC converter circuit operating in CCM for dynamic
voltage application. The SIMO circuit comprises of PV array as a renewable
energy harvesting source at input. Hysteretic controller design based on Direct
control with seamless transition control topology is implemented on this model for
sharing the inductor stored energy among the various connected outputs. For
proposed circuit, the switching frequency to generate the gating pulses for various
switches are 20KHz. The configuration of solar array is designed to deliver
maximum power on the input of SIMO DC-DC converter. For tracking the MPPT
incremental conductance with integral control configuration is applied on PV array
with fast speed and efficiency. This research used MATLAB/Simulink for model
configuration and parameters evaluations. Results show that the proposed SIMO
configuration with PV array provided 100.5W and 21.42W for 1000 and 250 �
�2
respectively. This is significantly high power compared with 8.4W of previously
reported SITO buck boost configuration.
