| 摘要 |
<p>PURPOSE:To eliminate electrical contact part, prevent an accident by electric shock and realize reduction in size by providing a high frequency power supply which converts a commercial power source into a high frequency, a core A winding the primary coil connected to the high frequency power supply and a core B winding the secondary coil which is magnetically and mechanically coupled to the core A 6 and supplies a power to a load Z connected. CONSTITUTION:After full wave rectification by a diode bridge 2, a high frequency signal of, for example, 10kHz and 20kHz, etc. is obtained from a commercial power source frequency by a multivibrator 8 and this high frequency signal is applied to the base of transistor 4. Thereby, the commercial power source is converted to a high frequency signal. The core A 6 is capable of reducing a loss for use in a high frequency by using a material having a high residual magnetic flux density, for example, ferrite or permalloy and is formed like a letter E. The primary core B 12 is also capable of reducing a loss by using a material having a high residual magnetic flux density and is formed like a letter E. When the core 12 is abutted with the core A 6, the core B 12 is magnetically and mechanically coupled with the core A 6, owing to the magnetic field induced on the primary coil 7 and then supplies a power to the load Z.</p> |
