《最为全面的电流检测电路详解》.pdf

Current Sensing Solutions for Power Supply Designers ByBobMammano ABSTRACT sensing applications, there are many issues facing the While often considered a minor overhead func- designer. Among these include: tion, measuring and controlling the currents in a .The need for AC or DC current information power supply can easily become a major contributor .Average, peak, RMS, or total waveform of the to the success or failure of a design. To aid in current achieving optimum solutions for this task, this topic .Isolation requirements will review the many strategies for current sensing, .Acceptable power losses in the measurement describe the options for appropriate sensing devices, process and illustrate their application with practical design .Accuracy, stability, and robustness techniques. The distinction between current control .Bandwidth and transient response and fault protection will be explored and applied to .Mechanical