Fig. 1 - 25A - 110/220V Solid State Relay (SSR) Circuits using Triac BTA24-600 With PCB Solid State Relays ( SSR ) are nothing new, but making your own SSR is priceless! With it we can connect to digital control devices such as; Arduino , PIC , ESP…

Fig. 1 - 4A Low-Noise High-Frequency Step-Up DC-DC Converter using MAX1709 with PCB This is a DC-DC converter circuit that uses a MAX1709 series Integrated Circuit as the main component, it works with a Step-Up  conversion system. This powerful mi…

Fig. 1 - 3500W Dimmer for 110V or 220V using TRIAC TIC246M with PCB This is a dimmable load controller circuit , its operation is based on the control of the sine cycle, keeping it off during a small period of the wave. And work only for a specific…

Fig. 1- 160W High Fidelity Amplifier using Mosfet 2SK1058 and 2SJ162 with PCB This is a High Fidelity  power amplifier, which uses 2 pairs of complementary MOSFET s output transistors, 2SK1058 and 2SJ162 , which gives us a 160W power output.  The…

Fig 1 -  Powerful Mini Audio Amplifier using only 5 Transistors with PCB This is a simple amplifier that uses only 5 transistors , and provides good power, by our tests, we get close to 90W , and amazingly enough, it has a very good sound given its…

Fig. 1 - High Performance 56W Audio Power Amplifier using LM3876 IC with PCB This is a High Performance 56W Audio Power Amplifie r, based on the LM3876 Integrated Circuit, with great sound quality, powered by a symmetrical power supply. The Amplifie…

Fig.1 - 12-36V 60A PWM DC Motor Speed Controller Using LM555 With PCB The main reason for using pulse width modulation in DC motor control is to avoid excessive heat dissipation, as in linear power control circuits.  Since in linear circuits there …

Fig. 1 - 440W Class AB Power Amplifier using Mosfet IRFP9240 and IRFP240 Transistors with PCB This is a high performance power amplifier, which despite its simplicity in construction, in the tests performed, it presented parameters with great result…

Fig. 1 - USB 5V 4A Car Charger using 78S05 This is a simple USB 5V 4A Car Charger circuit to charge a cell phone, tablet, or any other gadget that requires a voltage of 5V with a current of 2 Amperes via USB . The circuit is a DC converter that ta…