1 / 8

Durel IC Drivers

Durel IC Drivers. * Covered under one or more of the following patents -- 5,313,141; 5,780,975; 5,789,870. Durel 3-Port Circuit. Proprietary 3P topology: Provides shared common ground for improved EMI/RFI and audible noise management

nichole-oliver
Télécharger la présentation

Durel IC Drivers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Durel IC Drivers * Covered under one or more of the following patents -- 5,313,141; 5,780,975; 5,789,870

  2. Durel 3-Port Circuit • Proprietary 3P topology: • Provides shared common ground for improved EMI/RFI and audible noise management • Eliminates need for 3 layer lamps or additional shielding • Simplifies solution for driving multiple lamp segments Switch Mode - “3P” Integrated Circuit

  3. Advantages of Durel EL Drivers • Patented 3P topology • Shared common ground provides improved EMI/RFI and audible noise management • Eliminates need for 3 electrode lamps • Simplicity when driving multiple lamp segments • High level of integration • Proven low variability in high volume applications • Large foundry partners ensure quality product and stable source of supply

  4. Noise Sources • EMI/RFI • Can be handled using good EE practices. • Mechanical • Electrostrictive • Electrostatic

  5. Durel Low-Noise EL Drivers Noise Signal of EL Lamp on Typical Chip Driver • dV/dt reduced during L discharge • electrical noise minimized • quieter EL lamp output Noise Signal of EL Lamp on D365* Low-Noise IC Driver * Covered under one or more of the following patents -- 5,313,141; 5,780,975; 5,789,870

  6. Solutions for Mechanical Noise Reduce or eliminate audible noise by: • Using integrated low noise EL driver (e.g. Durel D365, D371,D372, D381) • Noise-dampening materials and adhesives • Electrical isolation (3P driver or additional ground layers/planes) • Using appropriate inductor • Using high performance HV cap

  7. Solutions for Electrical Noise Avoid EMI/RFI noise by: • Practicing fundamental EE techniques. • Bypass cap • Tight layout • Ground and power planes • Faraday shielding, where appropriate • Using 3-port EL driver output • Using low noise EL drivers • D365 • D371 • D381 • D372

  8. Wave-shapingTM • Feature of the D371, D372, D381, D305 • Optimize output waveform for lower noise • Control dV/dt during lamp discharge cycle to compensate for EL lamp size, frequency, or peak voltage * Covered under one or more of the following patents -- 5,313,141; 5,780,975; 5,789,870

More Related