What do the +24v and -24v markings on the power output terminal mean?
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# What do the +24v and -24v markings on the power output terminal mean?

Posted Date: 2024-01-15

What do the +24v and -24v markings on the power output terminal mean?

The +24V and -24V marked on the power supply output terminal refer to the voltage polarity and voltage size of the power supply output. In a circuit, a DC power supply is usually used for power supply, and the output end of the DC power supply usually has positive and negative poles. Among them, + represents the positive pole, - represents the negative pole, and 24V represents the voltage of 24 volts (V).

The +24V mark on the power output terminal indicates that this terminal is the positive pole of the power supply (also called the anode), and the voltage is 24V. And -24V means that this terminal is the negative pole of the power supply (also called the cathode), and the voltage is also 24V. Such a power supply output polarity is called a bipolar power supply, and the voltage difference between the positive and negative poles is 48V (24V-(-24V)=48V).

Bipolar power supplies can meet the needs of a variety of applications, such as amplifier circuits, voltage stabilizing circuits, logic circuits, etc. that require bipolar voltage supply. Both positive and negative voltages can be used to drive various devices, such as amplifiers, operational amplifiers, sensors, switches, etc.

The meaning of +24V and -24V marked on the power output terminal is mainly reflected in two aspects: voltage polarity and voltage magnitude.

First, voltage polarity represents the positive and negative polarity of voltage. In circuits, positive and negative polarity are very important. Different devices and circuit components have different requirements for positive and negative polarity. Some devices require the positive terminal as the power supply terminal, and some devices require the negative terminal as the power supply terminal. Using a bipolar power supply can meet the needs of these different devices and work better with the circuit.

Secondly, the size of the power supply output voltage is also very important for the operation of the circuit. The voltage output by the power supply determines the working status of the entire circuit, such as the operating points, current size, power, etc. of various components in the circuit. In different application scenarios, the requirements for the power supply output voltage are also different. Therefore, choosing the appropriate power supply output voltage is critical to the normal operation of the circuit.

For example, some electronic devices require a power supply output voltage of 24V because their circuit design requires 24V voltage to operate. For such a device, the +24V and -24V marked on the power output terminal are very suitable and can provide the required voltage.

In actual use, attention needs to be paid to the wiring of the power output terminal. Usually, connect the + terminal of the power supply to the positive side of the circuit and the - side of the power supply to the negative side of the circuit. This ensures that the voltage polarity of the power supply output is consistent with the requirements of the circuit and ensures the normal operation of the circuit.

In short, the +24V and -24V marked on the output terminal of the power supply indicate the voltage polarity and voltage size of the power supply. The positive and negative polarity of the power supply is crucial to the operation of the circuit, and the output voltage of the power supply determines the working status of the circuit. Choosing the appropriate power supply output voltage is of great significance for the normal operation of the circuit.

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