Pi 匹配电路之所以得名,是因为电路拓扑看起来像一个 pi 符号。该工具将帮助您创建匹配电路,以便在不匹配的负载之间实现最佳功率传输。这种技术不适用于宽带需求,但它是一种在特定频率上实现这一目标的简单方法。该计算器将为您提供电路拓扑以及组件值。
The Pi match circuit gets its name because the circuit topology can look like a pi symbol. This tool will help you create a matching circuit so that optimal power transfer occurs between unmatched loads. This technique doesn’t work for wide band requirements, but is a simple way to achieve this at a specific frequency. This calculator will give you the circuit topology as well as the component values.
使用此工具时需要了解一些重要事项。电路拓扑可以根据输入而改变。例如,在某些拓扑中,可能有 2 个电感器和一个电容器,而在不同的配置中,它可能是 2 个电容器和一个电感器。有一个菜单项可以选择是否有任何直流电流,这也会影响拓扑。输入要求源电阻和源电抗。如果您不确定电抗是多少,则将其设置为零以进行第一次近似。
There are some important items to understand when using this tool. The circuit topology can change depending on the inputs. For example in some topologies there may be 2 inductors and one capacitor and in a different configuration it may be 2 capacitors and one inductor. There is one menu item to select if there is to be any DC current or not, that also affects the topology. The inputs ask for source resistance and source reactance. If you are unsure what the reactance is set it to zero for a first pass approximation.
该工具的输出为您提供组件值以及从源头查看 pi 电路的阻抗图。这使您可以仔细检查计算器并确保它选择了适当的值,方法是确保阻抗与输入阻抗正确匹配。还要记住,匹配时电路输入电抗与源电抗极性相反。
The outputs of this tool give you the component values as well as a graph of the impedance looking into the pi circuit from the source. This allows you to double check the calculator and make sure that it selected appropriate values, by making sure the impedance correctly matches the input impedance. Also remember that the circuit input reactance will be opposite in polarity with the source reactance when matching.
用于通过直流电流 For Pass DC Current
用于阻断直流电流 For Block DC Current