Do you also design a power supply for pulse loads in this way? If you have any questions, please come in~

EEWORLD社区

Do you also design a power supply for pulse loads in this way? If you have any questions, please come in~ [Copy link]

 

This post is a special post for Vicor's How to match the power supply requirements of pulse loads theme event. If you have any related questions, you can discuss and raise them in the thread. We will sort out the questions raised from now to April 25 and send them to Vicor. Vicor experts will answer them (in the form of text or voice live broadcast in the relevant WeChat group). To join the group: add helloeeworld1 as a friend and note vicor to enter. Xiaobai brother:

What will happen if the power supply of a pulse load device is designed only according to the peak power? [/quote] Power supply expert Vicor : [quote]It is important to note that the peak power only lasts for a short time each time. If the power supply is designed according to this power, the size will definitely not be optimal.

Before the discussion, you can first understand the "power averaging design method with voltage regulation" and how it will benefit your future power supply design. The power averaging system solution with voltage regulation is simple and clear, but you also need to pay attention to the following three main factors:

• - The capacitance of the bulk capacitor
• - The voltage and current range of the isolator
• - The control loop bandwidth of the regulator

>>Click here to fill in the information, download the white paper, and view the complete content of the solution

吾妻思萌

I have a question for the experts. When high-voltage pulse discharge is performed on the load, the rapid rising and falling edges generated will cause strong electromagnetic interference, which may sometimes cause the control circuit to fail. Can the experts give some suggestions on this electromagnetic problem?

北方

In the section "Correctly Selecting the Capacitance of Large-Capacity Energy Storage Capacitors", the design methods for peak power and average power are very worthy of attention. The calculation method mentioned is a basic concept. Does Vicor have a recommended reference algorithm and specific considerations? It would be best to focus on it and also introduce the corresponding recommended products or modules.

jean1

How to eliminate noise pollution

skywalker_lee

Can the "Power Averaging Design Method" mentioned in the article be applied to low-power application scenarios? For example, when we design an RF system, the sleep state requires a very low current, but the current in the transmitting state is sometimes as high as several amperes. In this environment, can the technology introduced in the article be applied? What are the advantages compared with the ordinary method of simply using capacitor energy storage filtering?

90houyidai

How to effectively calculate the power supply capacity for high voltage pulse discharge

youzizhile

Does fixed ratio voltage isolator refer to a transformer?

方财华

How is it possible to achieve the recharging of the capacitor at a constant slope during the pulse off period mentioned in the white paper? What is the principle?

tgxzer

What is the best design?

nmg

tgxzer posted on 2019-3-28 13:24 What is the best design?

Haha, you can first look at the solution given by Vicor

Justice_Gao

The acoustic transducer needs a pulse trigger to send a signal, but the general power supply design cannot obtain a large power. I don't know if this can be solved.

打破传统

How much can the power averaging design method improve power supply efficiency? Is there any data comparison?

xiaozhuang

How can the fast transient response of this power supply reduce external electromagnetic radiation? 2 How small can the volume of this power supply be? How to consider heat dissipation and reliability?

李百仪

How much does the plan cost?

孟珺

Size the power supply to meet peak requirements? Range?

yangweiping2011

How much can the power averaging design method improve power supply efficiency?

appleliu88

To what extent can a power-averaging design approach with voltage regulation improve power supply efficiency and reduce power supply form factor?

appleliu88

What is the basis for selecting the capacitance of large-capacity energy storage capacitors?

1055875333

The power averaging design method with voltage regulation can effectively improve power supply efficiency and reduce the size of power supply products. It is an ideal choice for pulse load configuration power supply systems.

yyhhgg

There should be a certain relationship between power and pulse. Can we change the duty cycle and increase the drive circuit?