| 摘要 |
<p>Between the first and second input terminal (i1, i2) of the protective circuit improved by this invention, there is a diode (bod) connected in-between. Between the first terminal (i1) and first output terminal (o1) there is an induction coil (ic), and the second input terminal (i2) is connected to the second output terminal (o2). The inductivity of the induction coil (ic) lies in the range around 100 uH. It is also suitable for the protection against overvoltage with an amplitude of 35 kV and a rising time around 1.2 us as well as a drop time of around 50 us or before a 50 ns series of 4 kV impulses. Due to the small number of elements the described protective circuit is very suitable for large-scale manufacturing of protective circuits protected the aforementioned way, for example for protecting electronic power meters.</p> |
