DC-DC 10A Boost Converter Step Up Down regulator Module

Description

Disclaimer:
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he power module is a kind of electronic components, please do not shoot without electronic professional knowledge, otherwise it will be damaged, our shop cannot bear the consequences! ! !
This product adds constant current regulation and charging cut-off voltage regulation functions to the high-power car laptop power supply; this has the following advantages: 1. When used as a car laptop power supply, it adds output overcurrent, overload protection functions , Thus more secure. 2. As a high-power LED driver, when the battery is used for charging, it provides a boost constant current and constant voltage drive mode. It is possible to drive a higher voltage LED with a lower power supply voltage and a low voltage power supply to charge a high voltage battery. .
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Module nature: non-synchronous rectifier, non-isolated boost constant current constant voltage module, CC CV charging module
Scope of application: high-power LED constant current drive, lead-acid battery, lithium battery charging (including ferroelectric), 14V, 24V battery charging, nickel-cadmium nickel-metal hydride battery (battery pack) charging, solar panel)
Module parameters:
Input voltage: current DC 11-32V/10A (maximum)
Output voltage: 12-56V Default delivery voltage 48V Current 1A (Note: The input voltage cannot be higher than the output voltage and cannot be stepped down)
Output current: input 12V output 19V maximum 5A (of course, input support, input current should be at least 1.2 times larger than output current)
Output power: Maximum 95W (when the output voltage exceeds 35V, the output power should be reduced accordingly)
Easily drive 65W 90W laptop including dual core
Use a 12V battery with an ordinary 19V 3.42A notebook computer The temperature of the module is about 45 degrees
Conversion efficiency: 94% (measured at 12V input and 19V 2.5A output) (for reference only)
Working temperature: industrial grade (-40°C to +85°C) (the ambient temperature exceeds 40°C, please reduce the power to use, or add a fan)
Full load temperature rise: 45℃
Module size: length 65mm * width 34mm (including heat sink 56.5mm) * height 24mm
Constant current range: 0.3-4A (adjustment)
Turning lamp current: constant current value* (0.1), the turning light current is linked with the constant current value, for example, the constant current value is 3A, and the turning light current is set to 0.1 times of the constant current (0.1*3A=0.3A). When the current value is adjusted to 2A, the turning lamp current is 0.1 times the constant current (0.1*2A=0.2A).
The second version is fixed 0.1 times (the actual turning lamp current is approximate and not very accurate) It is used to indicate whether the charging is full.
Conversion efficiency: up to about 90% (efficiency is related to input, output voltage, current, and pressure difference
Application range:
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Adjustable power supply (90W high power), high-power LED driver, LED display driver, lead-acid battery charging, lithium battery charging, car power supply, car laptop power supply (boost), regulated power supply, high-voltage system power supply, a very wide range of applications .
Note: 1. When the output voltage is lower than the input voltage, there will be no constant current, because even after the boost circuit is turned off, the output voltage will be equal to the input voltage.
2. The output power must be lower than the input power, because the efficiency of any module cannot reach or exceed 100%; in order to ensure the output, please ensure that the margin of the input power is sufficient, because the switching power supply is working in the on-off state, and the impact is instantaneous The current is much higher than the normal working current.
3. Because this module has high power, the input current is also large, so the wire diameter of the input and output leads should be as thick as possible, and the length should be as short as possible. When we test, the input and output voltage is based on the input and output wiring on the module. The voltage on the socket shall prevail, regardless of line loss.
Current regulation skills: 1. This module is a boost module, when the output voltage is lower than the input voltage, it will not have a constant current, so it is not suitable to use an ammeter to directly short-circuit the output to regulate the current.
2. When adjusting the current, the adjustment method is different due to the different nature of the load. a. The best load is the electronic load meter. You only need to adjust the cut-off voltage first, then set the electronic load meter in the constant voltage mode, and then adjust the output current. To the required value. b. High-power LED lamp beads, first check the number and parameters of the lamp beads, such as 10 1W series LED lights, then you can adjust the cut-off voltage about 3.3V * number 10=33V; then connect the string LED load of the ammeter (the range of the ammeter should be larger than the actual current possible, the internal resistance should be as small as possible, the lead should be as short as possible, the following requirements for the ammeter are the same!), adjust the constant current potentiometer to brighten the constant current indicator on the circuit board; Then adjust the output current to the current you need, such as 0.33A. If the constant current lamp is turned off and the required current is not reached, you can increase the cut-off voltage slightly by 10%, and then restore it after the current is adjusted. The required cut-off voltage. c. The battery first determines the charging current and cut-off voltage to be adjusted according to the battery capacity and number of sections (generally, the charging current must be controlled within the range of 1/10-1/3 of the actual capacity to be beneficial to the battery), such as lead-acid 12V6AH For the battery, the cut-off voltage is 14.5V, and the charging current is best within 2A; so first adjust the output cut-off voltage to 14.5v, then connect the battery with the ammeter to the output terminal, and adjust the charging current to the required range; if it is constant If the current lamp is turned off and the required current is not reached, it may be that the battery is full, you can adjust the battery after emptying; or the internal resistance of the ammeter is too large, you can first increase the cut-off voltage appropriately to offset the pressure loss of the ammeter , Adjust it and then restore it; or the internal resistance of the battery has increased due to aging, you have to re-determine the actual capacity of the battery and then determine the charging current. If the battery capacity drops too much, it is best to replace it. Because old batteries self-discharge badly, the gains outweigh the losses.