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Philips Electronics Inc. (Philips) today introduced a system-in-package (SiP) that enables mobile TV in the fourth quarter of 2005. Based on the DVB-H standard, the solution integrates all the features of a complete digital TV receiver into a space that is only nail-sized. It helps consumers access TV shows, pictures, movies and music in real time on the road. From February 14th to 17th, Philips demonstrated its technological advantages in the field of DVB-H at booth #1 of Hall 1 of the 3GSM World Congress in Cannes, France.
To promote the development of mobile TV, Philips will launch a small system demonstration board in the second quarter of 2005 to support mobile phone manufacturers to participate in the next phase of DVB-H testing. A complete SiP for DVB-H that will reduce board space and reduce power consumption will also be introduced. The reduction in power consumption means that consumers can watch TV for more than 10 hours without charging the phone, and the small chip is easier to integrate into the phone. Operators can use DVB-H to broadcast software for many mobile phones at the same time, that is, after the mobile phone is sold, additional applications can be added to increase revenue.
In addition, Philips has partnered with Silicon & Software Systems (S3) to integrate its onHandTV software into this solution to provide advanced DVB-H compliant products complementing Philips' SiP. As part of the partnership agreement, S3 will join Philips' Nexperia(tm) Partner Program, which enables independent software vendors (ISVs) and integrators to provide middleware, applications and applications based on the Philips Nexperia(tm) family of semiconductor solutions. Reference design.
To improve the consumer's mobile TV experience, Philips Software also offers full support for H.264 video and AAC audio applications for high quality viewing/listening. It also features world-leading picture and audio-enhanced IP capabilities from Philips' proven consumer electronics products, including natural dynamic scanning for smooth viewing of images and "smart color formation" for fascinating LCD displays. These high-performance features will play an important role in creating sustainable consumer demand for mobile TV services.
Philips is the first semiconductor supplier to collaborate with content and mobile industry leaders in mobile TV trials as part of Philips' BMCO project in Berlin. The project uses DVB-H to broadcast traditional TV research and design innovative interactive content for mobile phones and portable digital TV platforms. The test not only uses this technology, but also focuses on the user's acceptance of the service. The results show that the services provided are widely used and recognized by participants, whether at home, on the road or in the office. A total of 512 users participated in the survey, of which 78% thought mobile TV is a very good idea, and 82% are willing to pay for content.
About DVB-H
DVB-H is a system based on DVB-T for transmitting data (usually digital multimedia data) in the form of IP packets. To reduce the power consumption of small handheld device devices, DVB-H uses "time slicing" technology, where IP packets are transmitted in a "data burst" manner during a short period of time. The front end of the receiver exchange will only be turned on during the selected service period. During this very short period of time, data is received at high speed and stored in the device's buffer memory. The buffer memory can store downloaded content and can also be played in real time.
The main function of the MPPT Solar Controller is to realize maximum power point tracking (MPPT) in the solar power generation system to improve the energy utilization efficiency of solar panels. It is an advanced charge controller that can adjust the output voltage and current of the Solar Panel in real-time to keep the solar panel operating at the maximum power output point.
Main effect:
Maximum power point tracking: MPPT Solar Controller can accurately calculate the maximum power output point of the solar panel by monitoring the voltage and current of the solar panel in real-time and according to the characteristics of the solar panel. It then adjusts the panel's output voltage and current to keep it operating at its maximum power output point, maximizing the solar panel's energy conversion efficiency.
High energy utilization rate: MPPT Solar Controller's maximum power point tracking function can ensure that the solar panel is always operating in the best working condition, making full use of solar energy, thereby improving the energy utilization rate of the photovoltaic power generation system.
Charge control: In addition to achieving maximum power point tracking, MPPT Solar Controller also has a charge control function to protect the battery from overcharge and over-discharge damage.
Differences from other charge controllers:
Maximum power point tracking function: MPPT Solar Controller is a charge controller specially used in solar power generation systems. The biggest difference is that it has a maximum power point tracking function, which is used to improve the energy conversion efficiency of solar panels. Other charge controllers may not have this unique feature.
Energy efficiency: MPPT Solar Controller can improve the energy efficiency of solar panels through maximum power point tracking technology. Other charge controllers may only be able to charge in a fixed manner and cannot achieve maximum power point tracking.
Application scenarios: MPPT Solar Controller is mainly used in solar power generation systems, while other charge controllers may be suitable for different types of energy generation systems, such as wind power, hydropower, etc.
Overall, the main role of the MPPT Solar Controller is to achieve maximum power point tracking, improve the energy conversion efficiency of the solar panel, and protect the battery from overcharge and over-discharge damage. Compared with other charge controllers, it has unique advantages in energy utilization efficiency and maximum power point tracking and is suitable for applications in solar power generation systems.
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