Characteristics of parallel circuits:
1. Distribution of current: In parallel circuits, the currents in each branch of the circuit are distributed independently, i.e., the currents in each branch do not affect each other. This means that if the resistance in one branch increases or decreases, it does not affect the current in the other branches.
2. Common **** end of voltage: All branches are connected to the common **** end of voltage. This ensures that the voltage is the same between the branches.
3. Branches do not affect each other: in a parallel circuit, a change in one branch does not affect the resistance, current or voltage of the other branches.
4. Calculation of power: In a parallel circuit, the total power is the sum of the power of the branches. This is because each branch circuit works independently and their power is also independent.
5. Safety: parallel circuits provide better safety. If one branch fails, the other branches can still work normally without paralyzing the whole circuit.
Applications of parallel circuits:
1. Power supply system: In power supply systems, parallel circuits are used to improve the reliability and stability of power supply. When a power supply fails, other power supplies can continue to supply power, ensuring an uninterrupted power supply.
2, electronic equipment: many components in electronic equipment, such as resistors, capacitors, diodes, etc., are used through parallel connections. This connection increases the performance and reliability of the equipment and also protects the circuit from voltage fluctuations.
3, communication systems: In communication systems, parallel circuits are used to realize signal amplification, filtering, matching and other functions. For example, in wireless communications, parallel circuits can help enhance the ability to receive and transmit signals.
4, control system: in the control system, parallel circuits are used to realize a variety of control functions, such as analog control, digital control and so on. By connecting different control elements in parallel, precise control of the system can be realized.
5, medical equipment: some components in medical equipment, such as sensors, actuators, etc., are realized through parallel connection. This connection can improve the reliability and safety of the equipment and ensure the safety of patients.