Portable experimental circuit board

The invention discloses a portable experimental circuit board. The portable experimental circuit board comprises a circuit board body, wherein the circuit board body is provided with an interface connected with an external virtual system; and the circuit board body is provided with an element characteristic measurement module, a negative resistance characteristic research module, a first-order circuit transition module, a Thevenin equivalent parameter measurement module, a CCVS module, a VCCS module, a two-port and reciprocity theorem module, a complex plane pole distribution and time domain response module, a dynamic circuit state track module, a passive filter module, an active filter module and an RLC series circuit module. Components and functions of each module of the portable experimental circuit board are discrete, the stability is high, circuits of each module can be used independently, the circuit setting of each module only needs to be known according to an experiment instruction during use, the und