Switches and Breakers
在电子、机电或电力系统中使用这些模块以提供保护。
类别
- Switches and Breakers
断路器和多端口多掷开关
- Relays
单端口单掷和双掷继电器
精选示例
Frequency-Dependent Transmission Line
A custom frequency-dependent transmission line model. The characteristic admittance and propagation function are first derived from the frequency-dependent resistance, reactance, and susceptance. The derived values are fitted using RF Toolbox. The Universal Line Model (ULM) [1] is then implemented in Simscape based on the fitted parameters. The results from the frequency-dependent transmission line model and the classic pi-section transmission line model are compared.
MOSFET Fault in Buck Converter
How a fault may be applied to a MOSFET in a power converter in order to explore the operation of protection circuitry. After the MOSFET becomes faulted, the crowbar circuitry is activated in order to clamp the output voltage across the load and eventually to cause the fuse to blow.
Delta Sigma ADC with Noise
A simple implementation of a sigma delta analog-to-digital converter. An input in the range 0 to Vref (=1V) is integrated until it causes the integrator to reset. The time to reset is proportional to the input value. Demodulation of the pulses is performed by a low-pass filter. The Asynchronous Sample & Hold block behaves like an edge-triggered D-type flip-flop, passing input U to output Y only on a rising edge of the clock. This model can be used to explore and understand the effect of op-amp impairments such as equivalent input noise on converter accuracy. To turn off the noise, open block Vn and select 'Disabled' for the noise mode.
Custom Solenoid with Magnetic Hysteresis
A limited travel solenoid with return spring. Magnetic hysteresis is modeled using the Reluctance with Hysteresis library block.
三相同步电机控制
此示例展示了如何控制和初始化同步电机 (SM)。测试电路显示 SM 作为发电机运行。端电压通过 AVR 控制，转速通过调速器控制。
三相异步电机启动
此示例展示了如何对感应电机的星型-三角型启动电路进行建模。当电源通过开关 S1 连接到电机时，开关 S2 最初处于断开状态，这导致电机以星型配置连接。一旦电机接近同步转速，开关 S2 闭合，从而将电机重新连接为三角型配置。电机采用星型配置时，电源侧看到的阻抗较高，从而降低启动电流，并减少对其他连接负载的干扰。
