| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify circuit structure and improve the detecting precision by informing the abnormality of the load by detecting the distortion of output current waveform and output voltage waveform of the constant current power source device. SOLUTION: When a loads 8 are opened, a saturable transformer 7 corresponding to the loads are saturated and made capable of feeding to other load. By the change from unsaturation to saturation of the transformer 7, a distortion occurs in the output current waveform and output voltage waveform of the constant current power source device 1. The load abnormality detecting means 15 detects the distortion of the above waveforms and informs the abnormality of the load and, as necessary, records it. As the output current waveform and output voltage waveform of the constant current power source device 1 is nearly sine wave at the normal load, even the slightest distortion can be detected and, thereby to that extent the circuit structure can be simplified and the detecting precision can be improved.</p> |
