A 1.5W 10V-output Class-D amplifier using a boosted supply from a single 3.3V input in standard 1.8V/3.3V 0.18μm CMOS
A 1.5W 10V-output Class-D amplifier using a boosted supply from a single 3.3V input in standard 1.8V/3.3V 0.18μm CMOS
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1.5W 10V 输出 D 类放大器，采用标准 1.8V/3.3V 0.18μm CMOS 中的单 3.3V 输入升压电源
DOI：
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发表时间：
2012
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通讯作者：
T. Piessens
中科院分区：
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作者：
B. Serneels;E. Geukens;B. D. Muer;T. Piessens
本文提出了一个完整的高压概念，采用低压CMOS技术设计，仅使用标称电压作为输入。开发了一种测试芯片，该芯片采用标准的1.8V/3.3V 0.18μm CMOS技术，采用感应DC-DC转换器，从单个3.3V输入产生10V输出。产生的10V作为片上d类输出级的电源，能够提供1.5W。10V由定制的高压ESD钳保护。保证了低压设备的可靠运行，包括工艺、电源和温度变化，而无需特殊的启动电路。
In this paper, a complete high-voltage concept is presented, designed in a low- voltage CMOS technology, using only the nominal voltage as input. A test chip has been developed with an inductive DC-DC converter generating a 10V output from a single 3.3V input in a standard 1.8V/3.3V 0.18μm CMOS technology. The generated 10V serves as a supply for an on-chip Class-D output stage, able to deliver 1.5W. The 10V is protected by a custom high-voltage ESD clamp. Reliable operation of the low-voltage devices is guaranteed, including process, power supply and temperature variations, without the need for special startup circuits.