LI Jun-hong, LI Ping, ZHANG Guo-jun, et al. The Studies of a Bipolar PWM Push-Pull Converter for Anti-Radiation Application[J]. Acta Electronica Sinica, 2011, 39(11): 2492-2496.
LI Jun-hong, LI Ping, ZHANG Guo-jun, et al. The Studies of a Bipolar PWM Push-Pull Converter for Anti-Radiation Application[J]. Acta Electronica Sinica, 2011, 39(11): 2492-2496.DOI：
A push-pull PWM converter based on bipolar process is proposed and verified.The dual outputs status push-pull shifting is realized through the cooperation of a status maintainer and a status switcher.Utilizing the bi-stable race
the circuit is insensitive to the current gain degeneration caused by irradiation.The circuit is manufactured via HUAYUE 2μm bipolar process and irradiated by Co-60 radiation source at the 5.6rad(Si)/s dosage rate and 100krad(Si) total dose.The test results indicate that the circuit is functional correctly while the single NPN device has current gain degeneration of 55%~65%.The bipolar power device driven by converter is fully cut when turned off
and the turn on voltage drop sees 12%~22% increase only.
京公网安备11010802024621