
feature of product:
1. Using newly selected components, quality assurance and durability
2. The product can effectively suppress AC clutter, making the output DC power purer. As a dual power supply for power amplifiers, it can be used for medium and low power power amplifiers such as LM1875, TDA2030, TDA7294, and LM3886.
3. The PCB board is made of FR-4 fiberglass board, and a large area of copper is laid to obtain a smaller internal resistance of the power supply.
4. This rectifier and filter board uses a super-large current 25A rectifier bridge to rectify the dual-channel AC full-wave into dual-channel DC. It uses four 3300uf/25V large capacitors for filtering, with a total capacity of up to 13000uf.
5. The large current input and output terminals use KF301-3P terminal blocks for quick and convenient wiring. An additional 2.0mm-2P power output terminal is added to make DIY more practical.
Product parameters:
Product name: Dual power supply rectifier filter board
Input voltage: dual AC AC9~17V
Output voltage: Dual DC ±12~24V
Flat bridge current: 25A
PCB material: 1.6mm thick FR-4 full fiberglass board
Installation hole distance: 60x31mm, hole diameter: 3.2mm
Kind tips:
This board is originally equipped with an electrolytic capacitor with a withstand voltage of 25V, and the maximum output DC voltage cannot exceed 25V. There is a boost of about 1.4 times after full-bridge rectification and filtering, so the input AC voltage cannot exceed 17V. If higher voltage is required, the filter capacitor must be replaced with one with higher voltage resistance. For example, when replaced with an electrolytic capacitor with a withstand voltage of 50V, the maximum output DC voltage can reach 50V, and the maximum input AC voltage can reach 35V. Overvoltage work will cause the electrolytic capacitor to bulge or burst! ! !
Product List:
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