A Design of Low Temperature Dependence Voltage Reference Circuit for PWM Controller
In order to provide steady voltage for PWM controller,a design of bipolar voltage reference circuit with high performance is presented.The circuit based on the compensation principle between Zener diode and B-E junction of triode is used in PWM controller and can bring out multi-way steady voltages,moreover,there is a high power supply rejection ratio (PSRR) and low temperature dependence.The results of simulation and test in Candence with bipolar process of HuaYue SB45 show that the temperature coefficient is about 1.2pprn/℃ in the temperature range-55~125℃.The line regulation is about 0.4mV/V in 8~30V and the PSRR is 77.54dB.The design of circuit can satisfy the requirements of PWM controller.
Voltage reference PWM controller Temperature coefficient Analog circuit
Zhichao Zhao Tiefeng Wu Jing Li Limin Li Qie Pan Jiang Chang
School of Information & Electronic Technology,Jiamusi University, Heilongjinag Province, 154007, Chi School of Mechanical Engineering,Jiamusi U niversity, Heilongjinag Province, 154007, China
国际会议
石家庄
英文
448-452
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）