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Block Diagram

Block Diagram. Analog Channels from Receiver (Left & Right Rear). Transmitter. Transmitter Power Supply (Eenas). ADC (Ayo). IR Transmitter (Kevin). Analog. Digital. Infrared. Receiver × 2. Receiver Power Supply (Rick). Amplifier (Brian). DAC (Ayo). IR Receiver (Kevin).

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Block Diagram

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  1. Block Diagram Analog Channels from Receiver (Left & Right Rear) Transmitter Transmitter Power Supply (Eenas) ADC (Ayo) IR Transmitter (Kevin) Analog Digital Infrared Receiver × 2 Receiver Power Supply (Rick) Amplifier (Brian) DAC (Ayo) IR Receiver (Kevin) Analog Digital Analog Channel to Speaker

  2. Transmitter Power Supply • Block Description • Is an electrical device that transforms the standard wall outlet electricity (AC) into the lower voltages (DC). • Will supply voltage to both the Analog to Digital converter (ADC) and the Infrared transmitter (IR Transmitter). Block Owner: Eenas Omari

  3. Block Level Performance Requirements * User Indicators and Displays: - Indicator Parameter : Power on LED. - Indicator Color and Type : Red LED. - Indicator Viewing Environment: bright light, full darkness. * Operation Modes: - Power Mode: ON, OFF. - Functional Mode: Normal. * Electrical Interfaces: Signal Type: Analog. Signal Direction: Input, Output. Input Voltage Range: 103 – 132 volts (AC). Input Frequency Range: 57 – 63 Hz. Output Voltage Range: 5, +12, -12 volts (DC). Output Current max. : 400 mA Block Owner: Eenas Omari

  4. Block Level Standard Requirements * Environmental: • Operating Temperature Range: 10 – 40 oC • Storage Temperature Range: 10 – 40 oC • Operating Humidity Range: 2 – 98 %Rh • Storage Humidity Range: 2 – 98 %Rh. Block Owner: Eenas Omari

  5. Transmitter Power SupplyBlock Signals Block Owner: Eenas Omari

  6. Transmitter Power Supply Design Voltage Regulator (DC/DC) +5 Volts 120 volts AC Isolation Rectifier AC/DC Conversion Output Input Voltage Regulator (DC/DC) Isolation Rectifier AC/DC Conversion +15 Volts Over-voltage Protection will be considered in this design Negative Voltage Regulator (DC/DC) -15 Volts Block Owner: Eenas Omari

  7. Block Architecture Transformer: 1 primary and 2 Secondary. Unless Otherwise advised!! Block Owner: Eenas Omari

  8. Block Owner: Eenas Omari

  9. Key Component Selection Block Owner: Eenas Omari

  10. Selected transformer : 115 volts at 50/60 Hz with a series connection of 56V C.T @ 2A. Output DC voltage and current after rectification To Find the filter capacitor value: Block Owner: Eenas Omari

  11. Finding the resistance values are according to the following equation: For the negative voltage. The adjustable current could be neglected because it’s so small ( in Micro Amps). Block Owner: Eenas Omari

  12. Resistance ratios: +5 volts DC: R2/R1 = 3. +15 volts DC: R4/R3 = 11. R6 is selected to be 120 Ω: -15 volts DC: R5 = 11 X 120Ω = 1.32 kΩ . Block Owner: Eenas Omari

  13. Component Selection Block Owner: Eenas Omari

  14. Bill of Materials

  15. Device Package • Prototype: For the LM137/LM337 -To-263 Package. For the LM117/LM317A/LM317 -To-220 Package. • Product: PCB Mount Block Owner: Eenas Omari

  16. Block Prototyping Plan IEC320 Off Board Connector Block Owner: Eenas Omari

  17. Task-Resource Estimate Summary Total hours: 282.5. Which includes: * Project definition and system design phases. * Verification, integration and productization phase. * Validation and presentation “final phase”. Total cost of $71 (Which includes PCB board). Block Owner: Eenas Omari

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