【摘要】：提出了一種改進的高輸入電壓調(diào)整電路結(jié)構(gòu),該電路結(jié)構(gòu)在TSMC 0.25μm BCD工藝平臺進行驗證。電路包括兩個參考電壓模塊、兩級調(diào)整電路和一個關(guān)斷信號產(chǎn)生模塊。介紹了初級電壓調(diào)整和精確電壓調(diào)整電路,可以產(chǎn)生穩(wěn)定精確的輸出電壓,同時也提高了低輸入電源電壓時的輸出電流能力。通過兩級電源調(diào)整電路可以實現(xiàn)軟啟動功能,減小啟動浪涌電壓,提高啟動性能。此外,關(guān)斷模塊產(chǎn)生可以可靠關(guān)閉高壓模塊和低壓模塊的兩種控制信號,使得在待機模式下高壓直流轉(zhuǎn)換系統(tǒng)僅消耗極低的待機電流。該電路結(jié)構(gòu)的輸入電壓可以在2.5~45 V寬幅范圍內(nèi)變化。在待機模式下,高壓直流轉(zhuǎn)換系統(tǒng)的待機電流最低僅300 n A,電源調(diào)整電路可以輸出最高60 m A的負(fù)載電流。
[Abstract]:An improved high input voltage adjusting circuit structure is proposed, which is verified by TSMC 0.25 渭 m BCD technology platform. The circuit includes two reference voltage modules, two-stage adjustment circuit and a turn-off signal generation module. This paper introduces the primary voltage adjusting circuit and the accurate voltage adjusting circuit, which can produce stable and accurate output voltage, and at the same time, improve the output current capacity of low input power supply voltage. The soft start function can be realized by the two stage power supply adjusting circuit, which can reduce the surge voltage and improve the startup performance. In addition, the turn-off module generates two kinds of control signals that can reliably shut down the high-voltage module and the low-voltage module, which makes the HVDC conversion system consume only very low standby current in standby mode. The input voltage of the circuit structure can vary in the wide range of 2.55V. In standby mode, the minimum standby current of HVDC converter system is only 300nA, and the load current of 60 Ma can be output by the power adjusting circuit.
【作者單位】： 電子科技大學(xué)微電子與固體電子學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(61274086)
【分類號】：TN86

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