Transformerless converter 220 V (240 V) to 110 V (CB1236E)

   This interesting AC / AC converter is only indicated for resistive loads and was obtained in a 1982 publication. The circuit supports loads up to 1.5 kW, but the transistor must be mounted on an excellent heatsink as well as the SCR responsible for the maximum current in the load. SCRs of the TIC series can be used, but according to their current will be the maximum power of the load. The capacitor of 220 nF must have insulation of 450 V or more and be of the polyester type. The circuit is only suitable for resistive loads because the voltage output form is not sinusoidal.





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