Abstract
Electric characteristics of step recovery diode (SRD) are analyzed, and a model of SRD is proposed. SRD is here looked as the parallel connection of nonlinear resistance and a nonlinear capacitance. In order to acquire a curve of the nonlinear resistance and capacitance, several discrete values of the nonlinear resistance and capacitance are measured. Then the nonlinear resistance and capacitance vs voltage are fitted by polynomials in several segments. The impulse production circuit is simulated based on this model. The circuit is achieved. The measured width of the pulse is 200 ps and the measured magnitude is 3.3 V, which coincides with the simulation result, and the model is thus verified.
| Original language | English |
|---|---|
| Pages (from-to) | 55-58 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 27 |
| Issue number | 1 |
| Publication status | Published - Jan 2007 |
Keywords
- Impulse pulse
- Polynomial fitting
- Step recovery diode