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Hector Hernandez is the credited presenter and preparer of the TI Precision Labs training material Brushed DC Motor 2: The H-Bridge by Hector Hernandez. Its scientific subject is the H-bridge: a switching network that applies either polarity to a motor and provides paths for the electric current already stored in the inductive load. The primary title slide gives his name exactly as used here.^[ref]

The material connects a controller's commands to MOSFET gate drive, then distinguishes forward/reverse conduction from recirculation. That distinction matters because reversing a command does not instantaneously reverse the electric current in a motor's inductance. Slides 5–7 show electric current decay paths through diodes or conducting switches.^[ref]

For an original bridge-loss example, take a $12\mathrm{V}$ supply and a stated operating electric current of $2\mathrm{A}$ through two conducting switches, each with electrical resistance $0.05\Omega$. Their combined conduction loss isand their combined potential drop is $2IR=0.20\mathrm{V}$. The motor terminals receive $11.8\mathrm{V}$ in the chosen conducting state, giving $23.6\mathrm{W}$ of electrical input from $24\mathrm{W}$ supplied. This is not a calculation of mechanical output: motor winding loss, induced electric potential difference and mechanical losses remain separate.

A bench comparison records terminal electric potential difference and motor electric current together while changing the bridge state. The waveforms separate voltage reversal from electric current reversal and expose the recirculation interval discussed in the training material. The numerical values above are illustrative calculations, not performance measurements attributed to Hernandez.