jkahala / Colossal Maroon TV Glasses

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Ultra-Stable Diode Laser Design

flux

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Work completed
  • Project description updated to reflect an ultra-stable 850 nm, 1 mW VCSEL module
  • System architecture diagram defined and saved in the “System Architecture” property
  • Major ICs added:
    • U1 IRL81A MOSFET
    • U2 ADR4525ARZ precision reference
    • U3 OPA188AIDBVR low-noise op-amp
    • Q1 BSS138-G MOSFET
Tasks remaining
  • Pick and add other active components (NTC temperature sensor, TVS diodes, interlock switch)
  • Review power subsystem for additional active parts
  • Add supporting passives:
    • Decoupling capacitors
    • Sense resistor
    • Pull-up/pull-down resistors
    • ESD protection diodes
    • RC network for soft-start/current limit
    • NTC for temperature compensation
  • Add connectors for VIN, GND, MOD, EN
  • Connect all nets and review schematic
  • Prepare and configure PCB layout (stackup, footprints, placement, routing)
  • Perform ERC/DRC and manufacturability reviews
  • Define calibration procedures for 1 mW at 25 °C and over temperature
Success criteria status
  • Low-noise constant-current driver with analog modulation, hard interlock, soft-start: not yet implemented
  • PCB layout ensuring noise minimization, thermal compensation, robust ESD: pending
  • Calibration procedure defined: pending
Next recommended step Proceed with selecting and placing the remaining active components (NTC sensor, TVS diodes, interlock switch) to flesh out the protection, sensing, and temperature compensation subsystems.
156 days
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    Colossal Maroon TV Glasses

    Colossal Maroon TV Glasses thumbnail
    Ultra-Stable 850 nm, 1 mW VCSEL Module with Low-Noise Constant-Current Driver and Analog Modulation

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $4.61–$10.17

    Digi-Key

    $0.96

    LCSC

    $6.95

    Mouser

    $11.25–$11.29

    TME

    $0.00

    Verical

    $9.35–$10.85

    Controls

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