Base on chip L6561, a PFC preregulator for 400w metal halide lamp ballast is designed with wide input and output range.

基于常用的L6561芯片，设计了宽输入输出范围的400瓦金属卤化物灯电子镇流器功率因数校正电路。

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The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.

测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高，达到国际同类产品先进水平。

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The new circuit has following advantages: a good stability of temperature, a good performance of electrical control and wide input range.

该电路具有温度稳定性好、电控性好、输入范围宽的优点。

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Only by actively soliciting input from wide-ranging sources can we develop alternative solutions that have higher value.

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Additionally, the company can utilize its substantial bargaining power with its suppliers, reducing the impact of industry-wide input cost increases and sustaining profit margins.

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We are using that input to shape an ongoing government -wide assessment of how the United States government supports nonprofits through capacity building and technical assistance, with the intent to streamline efforts and make them more impactful for the needs of local organizations.

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