50 A Power Supply Board Hi-fi Audio Amplifiers

50 A Unregulated Power Supply Board for Audio Amplifiers (Assembled, KBPC5010 Type)

This assembled board is designed to provide high-current unregulated DC power for audio amplifier applications.

Working Voltage:

• DC output voltage depends on transformer used
• Designed for use with center-tapped transformer input

Current Capacity:

• Maximum current: up to 50 A (depends on transformer, load, and heat dissipation)

Rectifier and Filtering:

• Heavy-duty bridge rectifier: KBPC5010 (or equivalent)
• Supports large filter capacitors up to 35 mm diameter
• Designed to deliver high peak current with low ripple for amplifier applications

Protection Features:

• Fuses provided on each supply rail for fault protection and short-circuit prevention

Board Specifications:

• PCB material: Glass Epoxy FR4
• PCB dimensions: 150 mm × 75 mm (5.9 inch × 3 inch)
• PCB thickness: 1.6 mm

Connectivity:

• Screw terminals (5 mm pitch) for input and output connections suitable for high current handling

Construction:

• Fully assembled board
• Uses through-hole components

Configuration:

• Designed for center-tapped transformer input for dual DC rail generation
• Requires proper heat sinking for rectifier and adequate wiring for high current paths
• Output performance depends on transformer and load conditions

Intended Use:

• Power supply for high-power audio amplifiers
• Subwoofer and high-current amplifier systems
• DIY audio and power supply projects