Circuits that contain both resistors, capacitors, and inductors are common, such as power supply filters, tuners in radios and televisions, and timer …
Category: Circuit knowledge
Talk about circuit knowledge, including series DC circuit, parallel DC circuit and AC circuit, etc.
What are active power, reactive power and apparent power?
In electrical research, there are three basic forms of power, namely: active power, reactive power and apparent power.Active power (P or PTRUE) …
What is an R-L circuit?
The R-L circuit contains resistors and inductors, as shown in Figure 1. If the resistance is very small or equal to zero, …
What is an R-C circuit?
The R-C circuit contains resistors and capacitors, as shown in Figure 1. The unit of capacitance (C) is farad. The units of …
What is a capacitor in an AC circuit?
The capacitor has a charging process and a discharging process. In a DC circuit, a capacitor is charged and stored, and a …
What are DC waveforms and AC waveforms?
The transformer is suitable for alternating current rather than direct current. Figure 1 shows the waveforms of direct current and alternating current. …
What is the working principle of a transformer?
1. electromagnetic fieldIn order to understand the working principle of a transformer, it is necessary to understand the principle of electromagnetic induction: …
Three-phase alternating current and alternating current advantages
①Three-phase alternating currentIn power transmission, the AC power output by the power station is high-voltage three-phase power. After the electricity is distributed …
Parallel DC circuit parameters, constant current source and shunt circuit
1.The rules for calculating parallel circuit parametersThe rules for calculating parallel circuit parameters are summarized as follows:(1) The total current (IT) is …
Basic knowledge of parallel circuit
Figure 1 shows a parallel circuit with three branches. Each current path is a branch. The current from the power supply is …