To solve the technical problems of precision timing control and continuous interaction existing in multi-component lightning direct effects of carbon fiber reinforced polymer（CFRP）

the lightning current component C generator based on the high-power rectifier circuit was designed. Meanwhile

the effects of smoothing reactors and the load on parameters of output lighting component C waveform

such as the rise time and ripple factor

were investigated. The test results indicated that the rise time of lightning current component C increased and the ripple factor decreased with the increase of smoothing reactor. In order to ensure the safe and normal operation of the lightning current C component generator

the coupling and decoupling network（CDN） which was consist of inductors and nonlinear varistor were designed and researched. We also studied the performance characteristics of the generator of lighting current component C under the injection of impulse current with different waveforms and amplitudes. The experimental results show that the maximum output voltage and current of current component C are 500 V and 1 000 A

respectively. And the CDN can effectively prevent the current component A or D flowing into C generator

ensuring current component A or D accurately to supply the equipment under test. Only the energy and duration of impulse current is large enough

the subsequent lightning current C component can inject effectively. The lightning current component C test system and its corresponding CDN can be used for lightning direct effect of carbon fiber reinforced polymer and provide experimental support for the optimized design of CFRP laminates.