Design & Integration File
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Design & Integration File

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Description

Advanced lighting applications for props increasingly use electroluminescent (EL) paints to illuminate surfaces. This solution implements a multi-topology power solution providing a complete and integrated platform for delivering high-voltage AC output from a low-voltage DC source. The system accepts a digital sinusoidal pulse-width modulation (sPWM) input, enabling flexible control of the output frequency to accommodate a wide range of application-specific requirements. At the front end, the step-up converter boost a 12 V DC input sourced from either a regulated supply or a battery to approximately 240 V DC. This high-voltage DC bus feeds the H-bridge inverter stage, which generates an AC output with a peak-to-peak swing of up to 480 V AC. The resulting high-voltage AC output with programmable frequency control enables efficient driving of electroluminescent (EL) paint and related materials. Its flexible architecture also supports motor drives and other applications requiring controlled high-voltage AC operation.

Applications

  • EL (Electroluminescence) Paint Driver
  • Motor Driver
  • Class D Amplifier
  • Inverter for Solar Panel

Features & Benefits

  • Precise voltage and frequency control enables compatibility with different EL paint types and brightness requirements.
  • Adjustable output parameters provide creative flexibility while maintaining high efficiency and reliable operation.
  • Supports analog and digital control options, simplifying integration with microcontroller‑based lighting systems.
  • Scalable power architecture accommodates a wide load range, making it suitable for various prop sizes and applications.
  • Compact, high‑performance alternative to traditional EL drivers, offering ease of use, adaptability, and long‑term operational efficiency for demanding entertainment environments.

Electrical Specifications:

  • Input Voltage: 12 VDC – 24 VDC
  • Output Waveform: Sinusoidal AC
  • Output Voltage (Peak): 140 Vpk – 340 Vpk
  • Output Voltage (Target): 150 V ±30 V
  • Output Frequency: ~1000 Hz nominal
  • Frequency Adjustment Range: 950 Hz – 1050 Hz
  • Output Power (Reference): 30 W
  • Expected Load Range: 25 W – 200 W
  • Output Characteristics: Variable voltage, variable frequency

System & Control Requirements:

  • Output Control & Dimming: Adjustable voltage & frequency with PWM and/or voltage dimming
  • Digital & External Control: Digital control preferred; accepts external PWM/SPWM
  • Adjustment & Flexibility: Parameter tuning with passive component switching
  • Scalability: Wide power range support
  • Integration Readiness: MCU‑friendly interface
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