
www.rsisinternational.org
INTERNATIONAL JOURNAL OF LATEST TECHNOLOGY IN ENGINEERING,
MANAGEMENT & APPLIED SCIENCE (IJLTEMAS)
ISSN 2278-2540 | DOI: 10.51583/IJLTEMAS | Volume XV, Issue II, February 2026
Ground connections (lower view) to achieve optimal circuit stabilization and noise reduction and they minimize
the routing of traces. It also balances strength and visibility, allowing students to see the circuit paths.The 3D
representation is less of an existential resource, more the actual position/existence of regulators, capacitors,
diodes etc. That tests correct spacing and that cooling was taken into account, and it lets students align the
symbols on the schematic to physical components in the circuit cards.
Which means the schematic and PCB layout are finished, this is the first overall goal. Moreover, second from a
technical and educational point of view the POWER Card and FILPO Card also satisfies this condition because
they provide an easy visualization of all stages in the circuit and the measuring points that can later be used to
evaluate operational behaviour.
Objective 2: Clinical effectiveness assessment of POWER Card and FILPO Card
Functional performance was evaluated as a secondary outcome of this study. POWER Card & FILPO Card
Performance Analysis 4.1 Voltage regulation accuracy ripple voltage behavior Power test plans were
implemented to evaluate the performance under loading and no-loading conditions. Results showed V OUT
ripple measurement with oscilloscope and regime efficiency calculation by Tables 1 to 3, supported by
measurements setup.
The results of the measurement output voltage without load (at idle condition) and full-load is shown in Table 1
All controlled output had a close value to expected. 5 — The +5 V regulated output load voltage was measured
at 5.03 V for the no-load condition and at 4.98 V full-load (efficiency of regulation of load values in conditions
of full load = 0.99%). The +12 V output measured similarly at full load with 1.49% regulation though the value
of maximum load was found to be 11.92 V. None the less that still is well within acceptable tolerances for linear
regulator based power supplies. The output was also variable, ultimately landing at slight variances across
different settings. So these results prove that the module designed gives an accurate as well as stable regulated
DC voltages i.e. it is a perfect equipment for a testbed not only on theorem provision perspective but also
laboratory perspective.
Ripple voltage results in Table 2 below also corroborate the appropriateness of the filtering stage. The no load
values ofa470 µFc filter capacitor ripple voltage be120 mV (0.81%), while250 mA value rises350 mV (2.43%)
and500 mA680 (4.82%) gauge.
The measured capacitance of the filter could be raised until reaching 1000 µF with a significant reduction in the
ripple voltage, which at no load was [65 mV(0.44%)] and for loads of 500mA it arrived at[310mV(2.18%)]. This
translates to more than 50% less ripple at maximum load. This forms the opposite relationship than one might
expect. The observed results are consistent with power supply theories plus the module also proves that filtering
principles can be readily demonstrated quantitatively.
Table 3 further complements the vulnerable stability of designed model is acceptable in voltage regulation
efficiency. Base on normally voltage regulationThe voltage differential (ΔV) between no-load and full-load was
very small for all of the regulated outputs.
This 0.05 V gives a ΔV of for +5V output with regulation of 0.99%. The adjustable and +12 V outputs regulation
values were measured to be 1.66% and 1.49%, respectively. These values are representative of good load
regulation and confirm that the developed POWER Card and FILPO Card are designed to meet specification
requirements at a realistic laboratory operating environment.
Results of functional performance evaluations are presented in terms of robustness — the capability of POWER
Card and FILPO Card to be used across a variety of load and filtering use-case scenarios. The observed and
predicted values are in good agreement. The obvious trend to mitigate the ripple is all there. It ensures that the
design remains technically sound and pedagogically appropriate. She demonstrated how rather than only the
ideal behaviour students were able to see both voltage regulation trends and ripple characteristics quantifiably
Theory and measures are really linked up in the module. This, in turn, accomplishes the second study objective.