bipolar sample hold

简明释义

双极型取样保持集成电路

英英释义

例句

1.The new ADC utilizes a bipolar sample hold to ensure accurate signal processing.

新型ADC利用双极采样保持来确保信号处理的准确性。

2.For high-frequency signals, a bipolar sample hold can significantly reduce distortion.

对于高频信号，双极采样保持可以显著减少失真。

3.In our circuit design, we implemented a bipolar sample hold to handle both positive and negative voltage levels.

在我们的电路设计中，我们实现了双极采样保持以处理正负电压水平。

4.The bipolar sample hold feature allows for improved performance in mixed-signal applications.

该双极采样保持特性允许在混合信号应用中提高性能。

5.We chose a bipolar sample hold circuit to optimize the dynamic range of our measurements.

我们选择了双极采样保持电路，以优化测量的动态范围。

作文

In the realm of electronics and signal processing, the term bipolar sample hold refers to a specific type of circuit that captures and holds an analog voltage level for a certain period. This functionality is crucial in various applications, such as data acquisition systems, analog-to-digital converters (ADCs), and digital signal processing (DSP). To fully understand the significance of bipolar sample hold, it is essential to explore its working principles, applications, and advantages.A bipolar sample hold circuit operates by sampling an input voltage and holding it constant during the conversion process. This is particularly important when dealing with rapidly changing signals, where immediate conversion could lead to inaccuracies. The 'bipolar' aspect indicates that the circuit can handle both positive and negative voltage levels, making it versatile for different types of signals. This capability is especially beneficial in audio processing, where sound waves can fluctuate above and below a zero-volt reference point.The core components of a bipolar sample hold circuit typically include a switch, a capacitor, and a buffer amplifier. When the switch closes, the capacitor charges to the input voltage level. Once the switch opens, the capacitor holds this voltage, while the buffer amplifier ensures that the output remains stable and unaffected by the load connected to it. This configuration allows the circuit to maintain the sampled voltage until it is ready to be processed further.One of the primary applications of bipolar sample hold circuits is in ADCs, where accurate representation of analog signals in digital format is critical. If the sample hold circuit does not function correctly, the resulting digital output may contain errors that degrade the overall system performance. By effectively capturing and holding the input signal, the bipolar sample hold ensures that the ADC can provide precise conversions, thereby enhancing the fidelity of the digital representation.Moreover, bipolar sample hold circuits are also used in communication systems, where they help in maintaining signal integrity during transmission. In scenarios where signals are modulated and demodulated, the ability to hold a sample can prevent distortion and ensure that the information is conveyed accurately.Another significant advantage of using a bipolar sample hold circuit is its ability to reduce noise in the signal processing chain. By holding the sampled voltage steady, it minimizes the impact of fluctuations and noise that may occur during the conversion process. This feature is particularly vital in high-precision applications, such as medical instrumentation and scientific research, where even the slightest deviation can lead to incorrect conclusions.In conclusion, the concept of bipolar sample hold is fundamental in modern electronics, particularly in areas requiring accurate signal processing and conversion. Its ability to capture and maintain both positive and negative voltages makes it an invaluable tool in various applications, from data acquisition to communication systems. Understanding how bipolar sample hold circuits work and their benefits can greatly enhance one's knowledge of electronic design and signal processing techniques, ultimately leading to better performance in technological implementations.

在电子学和信号处理领域，术语bipolar sample hold指的是一种特定类型的电路，该电路可以捕获并在一定时间内保持模拟电压水平。这种功能在各种应用中至关重要，例如数据采集系统、模数转换器（ADC）和数字信号处理（DSP）。要充分理解bipolar sample hold的重要性，有必要探讨其工作原理、应用和优点。bipolar sample hold电路通过对输入电压进行采样并在转换过程中保持该电压不变来工作。这在处理快速变化的信号时尤为重要，因为立即转换可能导致不准确。“双极性”一词表明该电路可以处理正负电压水平，使其在不同类型的信号中具有多功能性。这种能力在音频处理中特别有益，因为声波可以在零伏参考点上下波动。bipolar sample hold电路的核心组件通常包括一个开关、一个电容器和一个缓冲放大器。当开关关闭时，电容器充电到输入电压水平。一旦开关打开，电容器保持该电压，而缓冲放大器确保输出保持稳定，不受连接负载的影响。这种配置使电路能够在准备进一步处理之前维持采样电压。bipolar sample hold电路的主要应用之一是在ADC中，其中准确表示模拟信号为数字格式至关重要。如果采样保持电路未能正确工作，最终的数字输出可能包含错误，从而降低整体系统性能。通过有效捕获和保持输入信号，bipolar sample hold确保ADC能够提供精确的转换，从而提高数字表示的保真度。此外，bipolar sample hold电路还用于通信系统，在这些系统中，它们有助于在传输过程中保持信号完整性。在信号被调制和解调的场景中，保持采样的能力可以防止失真，确保信息准确传递。使用bipolar sample hold电路的另一个显著优势是其能够减少信号处理链中的噪声。通过保持采样电压稳定，它最小化了在转换过程中可能发生的波动和噪声的影响。这一特性在高精度应用中尤为重要，例如医疗仪器和科学研究，因为即使是微小的偏差也可能导致错误的结论。总之，bipolar sample hold的概念在现代电子学中是基础，特别是在需要准确信号处理和转换的领域。其捕获和保持正负电压的能力使其在各种应用中成为不可或缺的工具，从数据采集到通信系统。理解bipolar sample hold电路的工作原理及其优点，可以极大地增强人们对电子设计和信号处理技术的知识，最终在技术实施中实现更好的性能。