HERDER ELEKTRONISCHE SYSTEMEN

Personal / public technical prototype

5 V / 200 mA
SMPS.

An offline flyback prototype documented from transformer winding and component selection through waveform capture and bench validation.

FLYBACKTNY285MAGNETICSWAVEFORMSVALIDATION

01 / Objective

Turn a power stage
into evidence.

The project follows an offline flyback prototype through transformer and component decisions, schematics or BOM material, waveform capture and bench validation notes.

This is a personal public prototype. It is not presented as a certified supply, production design, commercial deployment or guaranteed output result.

02 / Scope

Magnetics,
switching, tests.

Technical scope

The repository provides a traceable record of transformer work, component selection, schematic/BOM material, captured switching waveforms and bench observations.

Topology

Offline flyback prototype.

Validation

Bench measurements and waveform review.

Oscilloscope photograph showing the flyback converter drain switching waveform
Switching-drain waveform photograph from the public repository; source file Drain.JPEG.
Close photograph of the flyback transformer core, gap and Kapton insulation construction
Gapped transformer and Kapton insulation construction; source file Kapton_tape_gapped_transformer.JPEG.
Close photograph documenting flyback transformer pin and termination orientation
Transformer pin and termination orientation; source file Transformer_Pin.JPEG.
Meter photograph documenting a primary inductance measurement on the flyback transformer
Primary-winding inductance measurement setup/readout; source file Primary_Inductance.JPEG.
Meter photograph documenting a leakage inductance measurement on the flyback transformer
Leakage-inductance measurement setup/readout; source file Leakage_Inductance.JPEG.
Meter photograph documenting resistance measurement of the 72-turn transformer winding
72-turn winding resistance measurement setup/readout; source file 72Turn_Resistance.JPEG.

03 / Evidence

Measured under
stated conditions.

This gallery is curated from existing project photographs supplied with the public SMPS repository. Captions identify the documented subject and source file; no values or validation claims are inferred beyond what the photographs show.

Documented bench result: approximately 4.94 V across a 22 Ω load with approximately 200 mA reported bench current. The 1 A designation is the intended output target; 1 A bench operation was not demonstrated by this record.

View repository ↗Related service: power electronics →

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Bring the
prototype.

Describe the converter, current stage, measured behavior and the design decision you need to make. Secure file exchange can follow the initial discussion.

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