1. (1) S. Okanuma : “Consideration of the Fundamental Characteristics of a Sinusoidal-Wave Output Inverter Utilizing Magnetic Oscillation”, J. Magn. Soc. Jpn, Vol. 30, No. 2, pp. 286-289 (2006)
2. (2) S. Okanuma : “Fundamental Characteristics of a Sinusoidal-Wave Output Inverter Utilizing Magnetic Oscillation Circuit with Single DC Voltage Supply”, J. Magn. Soc. Jpn, Vol. 31, No. 3, pp. 231-234 (2007)
3. (3) G. H. Royer : “A switching DC-to-AC converter having an output frequency proportional to the DC input voltage”, AIEE Trans. Vol. 74, pp. 322-324 (1955)
4. (4) J. L. Jensen : “An improved square-wave oscillator circuit”, IRE Trans. Circuit Theory, Vol. CT-4, pp. 276-279 (1957)
5. A new power measuring circuit using a bridge-connected magnetic circuit and another magnetic core