Circuit Enables Precision Control In Radiant Heating Systems

摘要

Successful design of precision tem- perature-control loops, like all high-performance servo systems, depends on careful management of the usual feedback gain and bandwidth tradeoffs. While always tricky, these interactions can become unmanageable if the relevant thermal "constants" are unknown, or worse, not constant at all. Discussed in this article is a thermal design that arose from just such a challenging scenario. The design involves a system complicated by the nonlinear temperature-dependent parameters of radiant heat transfer.