AD59230 power circuit. 
<ul><li>Blocking oscillator have some constructive defect: transistor connected secuence to "-" (negative pole), it just switchs on and switchs off transformer's primary coil. Electrical circuit has 4 inductor and absolutely no limitation diodes. So, after using 9-15 months, transistor will burn and keep primary coil open. As transformer is designed for high frequency, it's primary coil has very small resistance. Due to Ohm's law, after transistor burning, circuit will be shorted and burn fuses.</li></ul>
<a href="//commons.wikimedia.org/wiki/User:Dmitry_G" title="User:Dmitry G">Dmitry G</a>
<span class="int-own-work" lang="en">Own work</span>