There are several significant differences between pulsed and DC power supplies:
1.Current output mode:
The pulse power supply outputs current in the form of bursts, that is, it provides a certain amount of current in a short period of time, presenting an intermittent current output mode. The output current is generally rectangular or pulsed, with very high peak currents and short current pulses.
The DC power supply outputs the current in a stable and continuous way, and the output is a stable DC voltage with a fixed current direction.
2.Stability of the output voltage:
The output voltage of the pulse power supply is not very stable and is easy to fluctuate due to external interference, so the use of pulse power supply is not suitable in some occasions with high requirements for output voltage stability.
The output voltage of DC power supply has good stability and will not be disturbed by external factors, so it is very suitable for occasions with high requirements for output voltage stability.
3.How it works:
The working principle of a pulsed power supply is to use a capacitor to store electrical energy, and then quickly discharge the capacitor through a switching device to form a pulse of a current signal.
The DC power supply converts the AC power supply into DC power supply through the converter for output.
4.Scope of use:
Pulsed power supply is suitable for some high-load, high-power, high-speed working occasions, such as lasers, pulsed lasers, high-power LEDs, etc.
DC power supply is suitable for some occasions with stable current and high output quality requirements, such as electronic equipment, computers, communication equipment, etc.
5.Energy Saving Effect:
The switching power supply of pulse power supply is made of high-frequency transformer, which greatly improves the conversion efficiency, and can generally increase the efficiency of the equipment by more than 10%.
In terms of energy saving, DC power supply may need to be equipped with different power distribution systems and racks, and integrated generators to realize the conversion and ** of the power supply.
6.Cost and complexity:
Due to the high technical content, the manufacturing cost of pulse power supply is relatively high, and the circuit structure is relatively complex.
Although the DC power supply has good stability and high output accuracy, the cost is relatively high. However, there are also some lower-cost DC power supplies, such as linear regulated power supplies.
In general, pulse power and DC power supply are different in terms of current output mode, output voltage stability, operating principle, range of use, energy saving effect, cost and complexity. Which power supply to choose depends on the specific application needs and occasion.
The output current waveform of a pulsed power supply is usually presented as a rectangular wave or a pulse waveform. These waveforms have short current pulses and high peak currents. During a pulse, the current rises rapidly to a peak and is held for a period of time before rapidly falling to a level of zero or close to zero. The width of the pulses (i.e., the duration of the current) and the interval between pulses can be adjusted according to the specific application needs.
The output current waveform of a pulsed power supply can be in the form of a single pulse, a continuous pulse, or a pulse train. A single pulse refers to a single pulse of current, while a continuous pulse consists of a series of repeated pulses. The pulse train can be regular or irregular, depending on how the pulse power supply is controlled and set.
It should be noted that the output current waveform of a pulsed power supply may be affected by the charging and discharging characteristics of the capacitors inside the power supply, the response speed of the switching device, and the load characteristics. Therefore, in practical applications, the output current waveform of a pulsed power supply may vary and need to be adjusted and optimized on a case-by-case basis.
In addition, different types of pulsed power supplies may have different output current waveform characteristics. For example, some pulsed power supplies may employ a pulse output in the shape of a sine wave, while others may employ more complex waveforms to meet specific application needs. Therefore, when selecting and using a pulsed power supply, the characteristics and requirements of its output current waveform need to be carefully considered.