초록 ▼

A DC-to-AC inverter includes first and second resonant circuit loops each including a capacitor, a primary coil of an output circuit, a silicon control rectifier providing a current path in one direction around the loop, and a conventional diode providing a current path in the opposite direction aro

A DC-to-AC inverter includes first and second resonant circuit loops each including a capacitor, a primary coil of an output circuit, a silicon control rectifier providing a current path in one direction around the loop, and a conventional diode providing a current path in the opposite direction around the loop. A DC source is connected to supply a charging current through charging chokes to the capacitors in the resonant circuit loops. The silicon control rectifiers are periodically and alternately rendered conductive each to start a cycle of oscillation in one resonant circuit loops, while the DC source provides current to charge the capacitor in the other resonant circuit loop. The charging chokes and primary coils are phased to supply voltages which add to the voltage of the DC source during the charging of the capacitors.

대표청구항 ▼

A DC-to-AC inverter, comprising an output circuit including a transformer having first and second primary coils. first and second resonant circuit loops each including a capacitor, one of said primary coils, a silicon control rectifier providing a current path in one direction around the loop, and a

A DC-to-AC inverter, comprising an output circuit including a transformer having first and second primary coils. first and second resonant circuit loops each including a capacitor, one of said primary coils, a silicon control rectifier providing a current path in one direction around the loop, and a conventional diode providing a current path in the opposite direction around the loop, first and second charging chokes on a common core, a DC source connected to supply a charging current to the capacitor in said first resonant circuit loop through a charging loop path including said first charging choke and said first coil, and, to the capacitor in said second resonant circuit loop through a charging loop path including said second charging choke and said second primary coil, the charging choke and primary coil in each charging loop path being phased to supply voltages which add to the voltage of the DC source, and means periodically and alternately to render conductive the rectifiers in the first and second resonant circuit loops each to start a cycle of oscillation of current through the rectifier in one direction, followed by current through the diode in the opposite direction in one resonant circuit loops, while the DC source provides current to charge the capacitor in the other resonant circuit loop through the respective charging choke and primary coil.