ماژول مبدل DC-DC کاهنده LM2596 با امکان کنترل جریان خروجیLM2596 DC-DC LED STEP DOWN ADJUSTABLE POWER SUPPLY MODULE

ماژول تغذیه LM2596 در مواقع یک مبدل باک (buck) یا رگولاتور متغیر سوییچینگ بوده که امکان تغییر ولتاژ و جریان خروجی به وسیله مولتی ترن درنظر گرفته وجود دارد از این ماژول می توان در مصارف مختلف صنعتی یا غیرصنعتی از جمله ساخت یک منبع تغذیه ساده استفاده کرد.

LM2596 DC-DC LED STEP DOWN ADJUSTABLE POWER SUPPLY MODULE

Description:

LM2596 DC to DC step-down regulator, adjustable +1.25 to 30vdc output, with constant current adjustable up to 2A.

Ideal for battery-operated projects requiring a regulated power supply. Commonly used as a constant current LED driver, or for charging batteries.

Specifications:

• Regulator type: Stepdown (Non-isolated input to output)
• Input voltage: +7v to 35v DC
• Output voltage: +1.25v to 25v DC
• Output current: 2A rated, (3A maximum with heat sink)
• Switching frequency: 150kHz
• Efficiency: Up to 92% (when the output voltage is set high)
• Dropout voltage: 2v DC minimum
• Load regulation: +/- 0.5%
• Voltage regulation: +/- 2.5%
• Operating temperature: -40 to +85 degrees Celcius (output power less than 10W)
• Board size: 44mm x 21mm x 14mm

Contents:

• 2 x LM2596 LED DC-DC Step-down Adjustable Power Supply Module

Instruction

Battery charging methods:

Determine the float voltage and charging current that you need to charge battery and module’s input voltage.

Adjustable constant potentiometer, the output voltage is regulated to about 3V.

Use multi meter 10A current block measurement output short circuit current, meanwhile adjusting the constant current potentiometer to

make output current reaches predetermined current value.

The charging turn lamp current default is 0.1 times of charging current (current value ).If you need, adjust turn lamp current potentiometer please (generally do not adjust).

Adjustable constant potentiometer to make the output voltage to the floating charge voltage.

Connect battery, to try charging (1, 2, 3, 4, 5 steps is the module input power, output no-load not connected to the battery).

LED constant current driving use methods

Determine you need to drive LED operate current and maximum working voltage.

regulation constant potentiometer; 2, the output voltage is regulated to 3V.

Use multi meter 10A current block measurement output short circuit current, meanwhile adjusting the constant current potentiometer to

make output current reaches LED operating current.

Adjustable constant potentiometer to make the output voltage to the LED maximum working voltage.

Connected to the LED, try test machine. (1, 2, 3, 4 steps is the module input power, output no-load not connected to the LED lamps).