Description:
A buck converter (step-down converter) is a DC-to-DC power converter that steps down voltage (while stepping up current) from its input (supply) to its output (load).
The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation.
A Buck converter steps down a DC voltage from the input to the output. The circuit operation depends on the conduction state of the MOSFET:
On-state: The current through the inductor increases and the diode blocks.
Off-state: Since the current through the inductor can not abruptly change, the diode must carry the current so it commutates and begins conducting. Energy is transferred from the inductor to the capacitor resulting in a decreasing inductor current.
A buck converter can be used to maximize the power transfer through the use of impedance matching. An application of this is in a maximum power point tracker commonly used in photovoltaic systems.
Application:
Automobile electricity
Driving circuits
Unusual Voltage levels circuits
etc.
Features:
1. With voltmeter display, using an advanced microprocessor, voltmeter error ± 0.05V, range 0 ~ 40V. (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage is above 4V )
2. Tap the right button to switch the measurement input or output voltage, and the indicator light shows which voltage is being measured, and save the settings, even if it is powered off and then on.
3. The voltmeter can be turned off, and it can be easily realized by tapping the left button when it is not needed.
4. With terminal block, no soldering iron can be used conveniently, and retain the wire bond point
5. The input voltage is 4.0 ~ 40V (the input voltage must be 1.5v higher than the output voltage)
6. Adjustable output voltage range 1.25V ~ 37V continuously adjustable ( input voltage must be 1.5V higher than the output voltage )
7. The maximum output current can be as high as 3A, the normal stable working current is 2A
8. Using 150KHz internal oscillation frequency, the second generation of the electrical switching voltage regulator, power consumption and high efficiency.
9. With overheating protection and short circuit protection function.