variable voltage

简明释义

可变电压

英英释义

例句

1.The power supply can adjust to a variable voltage 可变电压 to meet different device requirements.

电源可以调整为可变电压以满足不同设备的需求。

2.When designing circuits, engineers must consider the effects of variable voltage 可变电压 on component longevity.

在设计电路时，工程师必须考虑可变电压对组件寿命的影响。

3.The motor operates efficiently under variable voltage 可变电压 conditions, allowing for better performance control.

电动机在可变电压条件下高效运行，允许更好的性能控制。

4.The laboratory uses a variable voltage 可变电压 source to test the limits of various electronic components.

实验室使用可变电压源来测试各种电子元件的极限。

5.In solar panel systems, variable voltage 可变电压 helps optimize energy output based on sunlight conditions.

在太阳能电池板系统中，可变电压有助于根据阳光条件优化能量输出。

作文

In the modern world, electricity plays a crucial role in our daily lives. One of the fundamental concepts related to electricity is voltage. Voltage can be understood as the electric potential difference between two points in a circuit. However, not all electrical devices operate on a constant voltage; many require what is known as variable voltage (可变电压). This term refers to a situation where the voltage level can change over time, depending on the requirements of the device or system in question.The concept of variable voltage (可变电压) is particularly important in applications such as power supplies, electric motors, and renewable energy systems. For instance, in power supply units, the ability to adjust the output voltage allows for compatibility with various electronic devices. This flexibility is essential because different devices have different voltage requirements; for example, a smartphone charger typically operates at 5 volts, while a laptop charger may require 19 volts.In addition to consumer electronics, variable voltage (可变电压) is also vital in industrial applications. Electric motors often need to operate at different speeds, which can be achieved by altering the voltage supplied to them. By adjusting the voltage, manufacturers can control the motor's performance, leading to increased efficiency and reduced energy consumption. This capability is particularly beneficial in industries such as manufacturing and transportation, where operational costs can be significantly impacted by energy use.Renewable energy systems, such as solar panels and wind turbines, also utilize variable voltage (可变电压). These systems generate electricity based on environmental conditions, which can fluctuate. For example, the output voltage of a solar panel varies with sunlight intensity. Therefore, inverters are used to convert the variable direct current (DC) produced by solar panels into a stable alternating current (AC) that can be fed into the electrical grid. This conversion process ensures that the energy generated is usable and consistent, regardless of the changing environmental conditions.The implementation of variable voltage (可变电压) technology has also led to advancements in smart grid systems. These systems can dynamically adjust voltage levels based on real-time demand and supply conditions, enhancing the overall efficiency of the electrical grid. By optimizing voltage levels, utilities can reduce energy losses and improve the reliability of power delivery to consumers.However, working with variable voltage (可变电压) systems requires careful consideration of safety measures. Fluctuating voltage levels can pose risks if not managed properly. Engineers must design circuits and devices that can handle these variations without compromising safety or performance. This includes implementing protective devices such as circuit breakers and fuses, which can prevent damage from unexpected voltage spikes.In conclusion, understanding variable voltage (可变电压) is essential in today's technology-driven world. Its applications span across various fields, from consumer electronics to industrial machinery and renewable energy systems. As we continue to innovate and develop new technologies, the importance of managing voltage variations will only grow, making it a critical area of study for engineers and technicians alike.