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What is the CEDD Cable: Contactless Energy and Data Distribution?

The **CEDD Cable** (Contactless Energy and Data Distribution) is an advanced system for transmitting energy and data simultaneously without requiring direct electrical contacts. This is achieved through inductive or capacitive coupling.

Quote1. Inductive Coupling
Inductive coupling relies on Faraday's Law of Electromagnetic Induction:

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V = -N * (dΦ/dt)Where:
- V: Induced Voltage (Volts)
- N: Number of turns in the coil
- Φ: Magnetic flux (Webers)

Efficiency:

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η = (P_out / P_in) * 100Where:
- P_out: Power delivered to the load (Watts)
- P_in: Input power (Watts)

Quote2. Capacitive Coupling
Power and data transmission are achieved through an electric field between plates:

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I = C * (dV/dt)Where:
- I: Current (Amperes)
- C: Capacitance (Farads)
- V: Voltage (Volts)

Capacitance is given by:

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C = ε * (A / d)Where:
- ε: Permittivity of the medium (Farads per meter)
- A: Area of the plates (Square meters)
- d: Distance between plates (Meters)

Quote3. Data Transmission
Data is transmitted using modulation techniques:

Amplitude Modulation (AM):

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s(t) = [A + m(t)] * cos(2πf_c * t)
Frequency Modulation (FM):

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s(t) = A * cos(2πf_c * t + k_f * ∫m(t) dt)Where:
- A: Carrier amplitude
- m(t): Message signal
- f_c: Carrier frequency

Advantages of CEDD Cable

• Contactless power and data transfer
• High reliability and durability
• Safe for explosive environments
• Easy installation and maintenance
• Integrated power and communication system

Applications:
CEDD cables are widely used in:

• Airport runway lighting systems
• Industrial automation
• Mining and hazardous environments

(https://www.cabledatasheet.com/thumbnails/TKH_CEDD_BROCHURE_2023.jpg)

https://www.cabledatasheet.com/pdf/TKH_CEDD_BROCHURE_2023.pdf

CEDD Cable: Contactless Energy and Data Distribution

The CEDD (Contactless Energy and Data Distribution) system combines power transmission and data communication without physical electrical contacts. Ideal for hazardous and industrial environments.

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Principles of Operation

1. Energy Transfer: Power is transferred inductively based on Faraday's Law:
  𝓔 = -dΦB/dt
   where:
   - 𝓔: Induced voltage
   - ΦB: Magnetic flux

2. Data Transfer: Uses modulated electromagnetic waves (FSK/ASK).

3. Coupling Efficiency: Efficiency depends on coupling coefficient and quality factors:
  η = (k² Q₁ Q₂) / (1 + k² Q₁ Q₂)
   where:
   - η: Efficiency
   - k: Coupling coefficient
   - Q₁, Q₂: Quality factors

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Key Components
1. Primary Unit: Generates electromagnetic field for energy transfer and encodes data.
2. Secondary Unit: Receives power and decodes data.
3. Coupling System: Coils/antennas ensure transmission.
4. Control Unit: Synchronizes power delivery and data communication.

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Advantages
1. Contactless Operation: Reduces wear and risk of sparking.
2. Safety: Suitable for hazardous environments.
3. Scalability: Supports multiple devices.

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Applications
- Airfield Lighting Systems: Runway lights.
- Industrial Automation: Flexible connections.
- Medical Devices: Sterile environments.