Hi team,
In most materials, the transfer function of voltage control mode is deduced, but few of them talk about the transfer function of current control mode. In voltage control mode, there are always two poles in buck, boost and buck-boost circuit. But in current control mode, there's only one pole in circuit. And I wonder how to deduce them. What's more, I want to know the relationship between the type of compensation and topology. For example, when a buck converter uses voltage control mode, a type 3 compensation network is always considered. What about buck-boost circuit? And how to determine which type of compensation network should be used.
Best Regards,
Peter Xu
