PROBLEM TO BE SOLVED: To provide an endoscope system which can reduce a fluctuation range of current consumption between a driving period of an imaging part and the other periods.SOLUTION: An endoscope system 1 includes: an imaging part 244 which picks up an image of a subject and generates an image signal of a subject a driving signal generating part 34 which generates a driving signal to drive the imaging part 244 in a prescribed cycle and outputs the signal to the imaging part 244 a Peltier element 226 as an equivalent load part which has almost the same load as the imaging part 244 and an FPGA (Field Programmable Gate Array) 271 as a control unit which drives the imaging part 244 during a period when the driving signal generating part 34 generates the driving signal and drives the Peltier element 226 while the driving signal generating part 34 does not generate a driving signal.COPYRIGHT: (C)2015,JPO&INPIT【課題】撮像部の駆動期間とそれ以外の期間で消費電流の変動の幅を低減することができる内視鏡システムを提供する。【解決手段】内視鏡システム1は、被写体を撮像して、被写体の画像信号を生成する撮像部244と、撮像部244を駆動する駆動信号を所定の周期で発生させて撮像部244へ出力する駆動信号生成部34と、撮像部244と略同じ負荷を有する等価負荷部としてのペルチェ素子226と、駆動信号生成部34が駆動信号を発生している期間に撮像部244を駆動させる一方、駆動信号生成部34が駆動信号を発生していない期間にペルチェ素子226を駆動させる制御部としてのFPGA271と、を備える。【選択図】図2
