30A/60V Electric Car Charger Control Circuit Simulation

Abstract:

Through analysis and comparison of existing charging method works , adding more links constant current charging and constant voltage charging on the basis of the three-stage charging mode is proposed to receive more in line with rechargeable batteries five-phase characteristic curve charging mode. By scaling the control circuit and the PI regulator circuits use the charging current value and the constant voltage is sampled , a constant voltage corresponding to the error value to be compared and outputs the PWM control chip SG3525, causing the output current of the front end circuit chip , the regulation voltage , the error is gradually reduced until it reaches the steady-state output . 1 key components - integrated operational amplifier selection Integrated operational amplifier control circuit for the main components , essentially the entire op-amp circuits are designed to carry around , so choose the op amp circuit is particularly important . From the foregoing analysis, the current control and voltage control portion of each part requires three op amp ( both as an amplifier , a PI controller is used ) , the entire control circuit requires access to six integrated amplifier . Out of circuit integration considerations, decided to use a quad op amp manifold and a dual op amp with the completion of the manifold . By screening and the corresponding parameters available on the TI (TEXAS INSTRUMENTS TI ) website , and ultimately determine the use of quad op amp LF347 and dual op amp TLC2272.

• Periodical: Advanced Materials Research (Volumes 971-973)
• Pages: 950-953
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.971-973.950
• Online since: June 2014
• Authors: Ying Chun Liu*, Jian Ming Zhang, De Long Zhang, Yan Yu Wang, Chun Guang Hou, Zi Ping Wang, Hua Xin Liu, Chun Rui Liu
• Keywords: Battery Charger, Electric Vehicle (EV), PI Regulator, Proportion of the Circuit, Simulation

References

[1] Huazhong University of Science College, Kang Guanghua electronic technology infrastructure ( analog part ) [M] Fourth Edition Beijing : Higher Education Press, 1999: 277-310.

[2] Wang Yuan analog electronic technology [M] first edition Beijing : Mechanical Industry Press , 1994: 312-317.

[3] Department of Electronics , Zhejiang University , Zheng Jialong , Wang Xiaohai other analog integrated electronic technology tutorials [M] first edition , Beijing: Higher Education Press, 2002: 213-216.

[4] North Jiaotong University Pingmin Chang Analog IC system [M] Second Edition , Beijing: China Railway Press, 1998: 167-180.

[5] Wu Yunchang analog integrated circuit theory and application [M] first edition Guangzhou: South China University of Technology Press , 1995: 137-140.