【正文】 注意事項 （ 1）在搭接電路時一定要斷開電源，在所有部分搭接完畢確認無誤后方能開啟電源。 （ 5）將各模塊電路連起來，整機調(diào)試，并測量該系統(tǒng)的各項指標。 具有過壓保護。 關(guān)鍵詞： 三端集成 可調(diào)式 穩(wěn)壓器 直流穩(wěn)壓電源 集成芯片 Abstract Using integrated threeterminal Mc7815bt positive voltage output and upc7924 negative output voltage adjustable voltage regulator, the output voltage from 0 and 0 to 24 v to 15 v adjustable voltage for use between bination form between 039 v adjustable voltage for use in power amplifier. The regulated power supply with stable performance. The structure is simple, high precision of voltage, current indicators. The advantages of convenient adjustment. The bination of the adjustable threeterminal voltage regulator of the output voltage is adjustable, stabilizing the output ripple is small, the output voltage of 0 ~ 39 v adjustable, if you want to achieve high stability, with overcurrent protection is generally to adjust the output voltage is about 0 to 30 v. So its good performance and high reliability. And because of this stabilizer has the advantages of small volume, convenient use and low price, so widely used. This paper introduces the integrated threeterminal Mc7815bt and upc7924 for voltage regulator adjustable dc regulated power supply design and production. Keywords: Threeterminal integration adjustable Voltage regulator Dc regulated power supply Integrated chips 目錄 第一章 設計目的及相關(guān)要求 .......................................1 直流 可變穩(wěn)壓電源的設計 .