V&V Enterprises Control & Display PCB Module – Dual-Board Power & Interface System
Upgrade or build your dairy testing machinery and equipment controls with this high-reliability Control & Display PCB Module by V&V Enterprises. This two-part electronic assembly combines a robust regulated power supply unit with a user-interactive interface panel. Built with premium discrete components like heat-sinked power devices, high-capacity filter capacitors, and tactile push buttons, it guarantees smooth operation and effortless system integration.
System Architecture & Components
1. Power & Control PCB
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AC Mains Input: Screw terminal connectors for safe $220\text{V AC}$ input (L, N).
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Transformer (12V / 500mA): Steps down incoming mains AC voltage for onboard processing.
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Rectifier & Filtering: 1N5407 rectifier diodes paired with a heavy-duty $2200\mu\text{F} / 25\text{V}$ filter capacitor for clean AC-to-DC conversion.
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Voltage Regulation: Onboard 7805 voltage regulator with heat sinks delivers a stable, ripple-free $5\text{V DC}$ output.
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Status Indication: Integrated Red Power LED indicator for instant power-on status.
2. Display & Interface PCB
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7-Segment Display: Dual numeric 7-segment LED display for real-time menu numbers, system status, or parameter readouts.
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Control Buttons: 4 tactile switches for intuitive parameter selection, navigation, and menu adjustment.
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Resistor Networks: Precision current-limiting resistors ensure optimal display brightness and LED protection.
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Status LED: Dedicated indicator light for monitoring operational modes.
Key Features & Benefits
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Complete AC to DC Solution: Converts AC input directly to regulated $5\text{V DC}$ power without needing external power adapters.
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Stable & Reliable Performance: Heat-sinked components and filtered power rails prevent voltage drops during continuous daily use.
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User-Friendly Interface: Clear 7-segment display readout with responsive tactile button input makes machine configuration simple.
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Compact & Easy Integration: Modular two-board design allows flexible placement within dairy machine enclosures, DPUs, and control boxes.
Technical Specifications
| Feature | Specification Details |
| Product Name | V&V Enterprises Control & Display PCB Module |
| Board Configuration | Dual PCB (Power/Control Board + Display/Interface Board) |
| Input Supply | AC Mains (L, N) |
| Regulated Output | 5V DC |
| Transformer Rating | 12V / 500mA |
| Display Type | 2-Digit 7-Segment Numeric LED |
| User Input | 4 x Tactile Push Switches |
| Core Components | 7805 Regulator, 1N5407 Diodes, $2200\mu\text{F}$ Capacitor, Dual Heat Sinks |
| Target Applications | Milk Testing Machines, Dairy DPUs, Automated Equipment Controls |
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