Circuit analysis by a new multirate method

✍ Scribed by Toshiji Kato; Takeshi Kataoka

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 528 KB
• Volume: 126
• Category: Article
• ISSN: 0424-7760
• DOI: 10.1002/(sici)1520-6416(199903)126:4<55::aid-eej7>3.0.co;2-g

✦ Synopsis

This paper proposes a new multirate analysis method which selects a proper numerical integration step size for each variable in analyzing a circuit which has subcircuits with different rates. First a formulation technique of multirate circuit equations is derived. Then a rate classification technique is derived from the error estimation formula of the backward differentiation formula (BDF). Further a stepsize adjustment technique at a breakpoint is explained. Finally the proposed method is applied to a basic filter and a dcdc converter circuit shows the efficiency of the method.