chgt mineur

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Nolan Reynier Nomer 2026-05-18 15:07:47 +02:00
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@ -80,7 +80,7 @@ The complexity and price of manufacturing power transistors made us go for the s
\subsection{Replacing an IC} \subsection{Replacing an IC}
Replacing the IC of a motor controller requires using traditional logic gates. This approach can be done in several methods. The AIME would easily be able to produce such a circuit at a relatively low cost, but this is neither easily accessible nor repairable. We therefore needed to use another form of logic gates. The simplest form of gates are diode gates, which use two diodes to make either an AND or OR-gate. They cannot make NOT-gates, which need a CMOS-cell (two transistors). We continued by simulating this in LTSpice XVII, based on Mr. Rocacher's circuits. This circuit ended up needing 4 AND-gates, 2 OR-gates and 1 NOT-gate ("CMOS cell" using two N-Channel MOSFETs and possibly a MOSFET driver) per phase, with additional transistors to compensate for voltage lost at the diodes, as well as one additional OR-gate. The total would be like this: Replacing the IC of a motor controller requires using traditional logic gates. This approach can be done in several methods. The AIME would easily be able to produce such a circuit at a relatively low cost, but this is neither easily accessible nor repairable. We therefore needed to use another form of logic gates. The simplest form of gates are diode gates, which use two diodes to make either an AND or OR-gate. They cannot make NOT-gates, which need a CMOS-cell (two transistors). We continued by simulating this in LTSpice XVII, based on Mr. Rocacher's circuits. This circuit ended up needing 4 AND-gates, 2 OR-gates and 1 NOT-gate ("CMOS cell" using two N-Channel MOSFETs and possibly a MOSFET driver) per phase, with additional transistors to compensate for voltage lost at the diodes, as well as one additional OR-gate. The total would be like this:
\begin{table}[H][htbp] \begin{table}[H]
\caption{Minimum number of diodes and transistors needed} \caption{Minimum number of diodes and transistors needed}
\label{tab:decompte} \label{tab:decompte}
\centering \centering

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