0405: Carico attivo regolabile da 250 Watt, 15 ampere con IGBT

🎁 JLCPCB 1-8 Layer PCB at $2. PCBA from $0 (Free Setup, Free Stencil) 📌 Sign Up Here to Get $54 New User Coupons at - https://jlcpcb.com/?from=SKL 💳 Channel support 🔴Patreon:   / pieraisa   🔵Paypal: [email protected] 🟢Shop Online https://teespring.com/stores/pier-aisa 📣 Forum: https://www.pieraisa.it/forum/ 🎬 Complete list of videos https://www.pieraisa.it/videolist 📌 Free Download Area: https://www.pieraisa.it/download 📺 Website: https://www.pieraisa.it/ 🔥 Kit catalog for sale: https://www.pieraisa.it/kit ✉ Email: [email protected] As discussed in the forum (http://mylothehack.altervista.org/for..., in this video I build an IGBT-based active load from scratch. I use a classic scheme, also seen on NuovaElettronica, which uses an LM358 operational amplifier to compare the current drawn by the IGBT with the current set by a potentiometer. For the IGBT, I use a 100A 600V Fairchild 2MBI100TA module, operating it in the linear range to dissipate the required power. I test it first with a benchtop power supply rated up to 150W, then with a 1.5KW power supply, but since the output is high (about 50V) and I move the potentiometer too quickly, the IGBT fails due to a short circuit. I then use a power supply with a variac, bridge rectifier, and capacitor bank. With this setup, I can operate stably at up to 250W and currents up to 15A. I try overloading, and the IGBT fails at about 350W. In a future episode, we might try to control it via Arduino. #projects #electronics #tutorial