https://rfcorner.in/tags/gan/Recent content in GaN on Dhiru's NotebookHugoenSat, 27 Jun 2026 00:00:00 +0000https://rfcorner.in/posts/1w-5v-amplifier-2026/Sat, 27 Jun 2026 00:00:00 +0000https://rfcorner.in/posts/1w-5v-amplifier-2026/<h2 id="the-constraints">The constraints</h2> <ul> <li>5V (~500mA) power from phone</li> <li>1W RF output required</li> <li>Very compact with less "moving" parts</li> <li>14 MHz capable</li> </ul> <h2 id="the-design">The design</h2> <p>We purposefully utilize "high Rds" EPC GaN parts with very low Qgs.</p> <p><img alt="1W RF amplifier" loading="lazy" src="https://rfcorner.in/images/1W-GaN-Phone-Power.png"></p> <h2 id="simulation-results">Simulation Results</h2> <p>Power consumption: Around 300mA @ 5V.</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-fallback" data-lang="fallback"><span class="line"><span class="cl">pout: AVG(v(out)*i(r3))=1.0606 FROM 5e-05 TO 0.0001 </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">pin: AVG(-5*i(v3))=1.38209 FROM 5e-05 TO 0.0001 </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">isupply: AVG(-i(v3))=0.276418 FROM 5e-05 TO 0.0001 </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">eff: pout/pin*100=76.7393 </span></span></code></pre></div><h2 id="cost">Cost</h2> <p>Cost: &lt; 500 INR.</p>