Feedback Loop Compensation 201
B.2 Defining the Open Loop Response of the Switching
Power Supply—The Control-to-Output
Characteristics
Before the designer can begin to develop a stable negative feedback circuit, the
behavior of the system that is to be controlled must be defined. To do this, the
designer should have a general understanding of what each of the major sec-
tions of the switching power supply contributes to the entire open-loop Bode
response of the switching power supply. Fortunately, the commonly employed
topologies, as described in this book, have previously been defined and fall
into two major responses. The choice of which response to use ...