This may be the best automotive 48V power supply solution

eric_wang

This may be the best automotive 48V power supply solution [Copy link]

 

Automotive OEMs are setting aggressive goals to electrify their fleets over the next 5-10 years. To do this, they need to overcome obstacles, not the least of which is how to deliver nearly 20 times the power of existing ICE vehicles (ICE) without taking up valuable packaging space and adding weight. They need to ensure that every EV is compatible with DC fast charging stations along highways to eliminate range anxiety. And they need to show consumers that EVs have all the comfort, safety, and performance of ICE vehicles. Vicor is working with OEMs and Tier 1 suppliers to help them overcome these obstacles with innovative modular power delivery networks (PDNs).

A new approach to power architecture

Power density

The size and weight of power electronics directly impact vehicle performance. Go further and faster with smaller, lighter power solutions.

Flexibility and scalability

OEM designers are challenged by evolving power delivery requirements. Quickly implement standardized solutions across a variety of vehicles.

Reusability

Certification and approval of electronic components makes vehicle development very time-consuming. A modular, building-block approach saves time and resources, allowing you to get ahead in the race to electrification.

More power in less space

汽车工业面临的主要挑战之一是需要在更少的空间内提供更多的动力。电动汽车使用的电力超过 50kW，而燃油车的电力不足 3kW。功率增加近 20 倍需要紧凑的电源解决方案来释放空间和重量。减小供電网络的尺寸和重量是关键因素。例如，2.5kW 的 Vicor BCM6135 可放在手掌中，重量仅为 65 克。

Vicor is committed to a zero-defect philosophy in our automotive quality management system. With over 40 years of experience in designing, developing and manufacturing power modules, Vicor's patented high-frequency DC-DC power conversion technology is well suited for the automotive market.

Vicor has invested heavily in world-class manufacturing and operations to deliver the highest levels of quality and reliability.

Our ongoing collaboration with major OEMs in Europe, Asia and North America demonstrates Vicor's success and commitment to the automotive market.

Click here to learn more about Vicor's automotive solutions

CO2 _emission standards have pushed OEMs to rethink how to power cars again. While OEMs are introducing electrified vehicles to meet these standards, a consistent approach to providing power, not just to the motor, but to all subsystems in the vehicle has not yet emerged. This lack of clarity has been exacerbated by the massive increase in power demand.

VICOR invites you to watch >> Free webinar: Accelerating xEV development with modular power

Highlights from this webinar:

• How a modular approach to power supply can solve three key barriers to electrification
• Real-world examples of power applications for OEMs and Tier 1 suppliers
• Market forecast for global vehicle sales and percentage of electrified vehicles over time
• Power supply network example, including distributed 48V distribution and 400V/800V charging compatibility

tagetage

2.5kW and weighs only 65 grams. Is that so cool? This is something that only exists in legends.

langtuodianzi

Is it costly?

PowerAnts

tagetage posted on 2021-11-2 12:57 2.5kW weighs only 65 grams. Is it so awesome? This is something that only exists in legends.

2.5KW is the power with radiator and fan. The bare module can only output 20% power under the most suitable input voltage for a long time.

1399866558

Can you get it for free? That’s the point.

tagetage

PowerAnts published on 2021-11-2 18:40 2.5KW is the power with the heat sink and fan. The bare module can only output 20% power under the most suitable input voltage for a long time

Thanks, but it's incredible that this power density can be achieved with a heat sink and a fan. I think the key is isolation.

PowerAnts

tagetage posted on 2021-11-2 19:20 Thank you, but it is too scary to achieve this power density with a heat sink and a fan. The key is isolation.

98% efficiency is not the key point. It is very common to achieve this efficiency at a constant transformer ratio. The reasons for the high power density are:

1. High frequency, reducing the volume of magnetic components and capacitors, which depends on the material selection;

2. The main filter circuit is given to the user to add an external plug-in;

3. Solve the thermal resistance from the heat-generating device to the shell, and leave the environmental thermal resistance to the user to add plug-ins;

4. CHIP core control circuit

tagetage

PowerAnts published on 2021-11-3 09:31 98% efficiency is not the key point. It is very common to achieve this efficiency with a constant transformer ratio. The reasons for high power density are: 1. High frequency, reducing the magnetic components and capacitors...

Thank you for spreading the knowledge, but modules with this power density cannot be produced in China now.

annysky2012

There are restrictions on overseas purchases.

PowerAnts

tagetage posted on 2021-11-3 13:38 Thank you for popularizing knowledge, but modules with this power density cannot be made in China now.

Just looking at the core modules, it may not be achieved in China within 20 years!

But if it is an application that runs at full power continuously, then I have done it!!!

Our module is encapsulated in an aluminum shell and is very large and thick. For the same power, VICOR needs to add a heat sink and a fan. The total volume is also similar!

You can imagine a computer CPU. The VICOR module is equivalent to the CPU. It can actually run without a heat sink and a fan, but the main frequency must be locked to the lowest. A power consumption of one or two watts is no problem, right?

tagetage

PowerAnts published on 2021-11-4 10:11 Just looking at the core module, it may not be achieved in China within 20 years! But if the application is running at full power continuously, then I have already done it...

Another advantage of the small core module is that it can handle short-term high-power output. With such a small size, liquid cooling can be used, and the small size still has many application scenarios.

felix1104

Thanks for sharing, thanks for sharing, thanks for sharing, thanks for sharing, thanks for sharing

PowerAnts

tagetage posted on 2021-11-4 12:31 Another advantage of the small core module is that it can handle short-term high-power output. With such a small size, liquid cooling can be used. The small size still has very...

High power density is really amazing in this regard. For the same amount, they charge US dollars and we charge RMB.

Gen_X

48V should be the concept of electric bicycles. As this application, it is very good.

Electric vehicles generally use 400V, so the current will not be too large and the technology can be popularized.