Designing of DC/DC Reducing Consumption Based on Current Type PWM LM5026
Yuping Zhang · Telecom Power Technology · 2011
This paper introduces DC/DC reducing consumption principle and two ways for current sampling in the current type PWM LM5026 CS pin,the current is sampled by using a sampling resistor and a current sense transformer,and their respective advantages and disadvantages are compared.Experimental results indicate that both ways can effectively controlle the output of PWM signal,ensure the safety and stability of the chip.However,the use of current transformer for current sampling can effectively improve circuit's conversion and reduce power consumption.