3A 35W Stabilized Power Module Constant Voltage Constant Current Adjustable Automatic Voltage Lifting Power Module

The XL6009/LM2577 on the market adopts a single SS34 rectifier tube, first of all, the voltage withstand value is not enough, and the voltage withstand value of the rectifier tube and switch tube is greater than the sum of the maximum input voltage and the maximum output voltage according to the prince of rising and falling voltage (if the maximum input voltage and output voltage are 30V, the voltage withstand value of mos tube and Schottky should at least reach 60V). The maximum voltage of SS34 is 40V, and the maximum voltage of 6009 is 36V. The design of this module has risks.

Second, the current output capacity is not enough, the SS34 maximum current 3A (coupled with switching lo, bad heat diation, the real paable current capacity is le than 3A), Schottky once the voltage is too high or the temperature is too high will be broken down, thus ing the main , there are risks;

Finally, the XL6009/LM2577 scheme has low efficiency and large heating of ordinary inductors, which is not a boost and lacks sufficient protection.

This module s the lift as the main controller, the external 60V 75A MOS tube as the switching tube, and double 60V 5A SS56 Schottky for rectification; XL6009/LM2577 solution, 30V input and output voltage and 3A high current can not withstand the prince of deliberation and practical research!

About:

Wide voltage input 5-30V, wide voltage output 0.5-30V, both boost and buck, such as you adjust the output voltage to 18V, then the input voltage between 5-30V changes, will be a constant output of 18V; For example, you input 12V, adjust the potentiometer set 0.5-30V arbiry output.

High power, high efficiency, better performance than XL6009/LM2577 solution. An external 60V75A high-power MOS is d and coupled with a high-current and high-voltage Schottky SS56. It is not comparable to SS34 of 6009 or 2577 schemes, beca according to the prince of rising and falling voltage, the voltage withstand of MOS and Schottky is greater than the sum of input and output voltage.

silicon aluminum ic ring inductance, high efficiency. No inductive whistling in constant current mode.

The current size can be set for limiting output current, constant current drive, and battery charging lights.

With its own output anti-backflow function, there is no need to add an anti-backflow when charging the battery.

Product s:

Input voltage: 5-30V

Output voltage: 0.5-30V

Output current: It can work stably in 3A for a long time, and can reach 4A under enhanced heat diation

Output power: natural heat diation 35W, enhanced heat diation 60W

Conversion efficiency: about 88%

Short circuit protection: Ye

Operating frequency: 180KHZ

Size: Length * width * height 65*32*21mm

Weight: 30g

How to :

1. d as an ordinary booster module with overcurrent protection

How to :

(1) Adjust the CV constant voltage potentiometer so that the output voltage reaches the voltage value you want

(2) Measure the output short-circuit current with the 10A current stop (directly connect the two pens to the output end), and adjust the CC constant current potentiometer to e the output current reach the predetermined overcurrent protection value. (For example, the current value displayed by the is 2A, then the maximum current when you the module can only reach 2A, and the red constant voltage constant current indicator is on when the current reaches 2A, otherwise the indicator is off)

Note: When d in this state, beca the output has a current sampling resistance of 0.05 , there will be a voltage drop of 0~0.3V ar connecting the load, which is normal! This voltage drop is not pulled down by your load, but down to the sampling resistance.

2. as a battery charger

The module without constant current function can not be d to charge the battery, beca the preure difference between the battery and the charger is very large, resulting in exceive charging current, resulting in battery damage, so the battery should be d at the beginning of the constant current charging, when the charging to a certain extent, the automatic switch back to constant voltage charging.

How to :

(1) Determine the floating charge voltage and charging current of the battery you need to charge; (If the battery is 3.7V/2200mAh, then the floating charging voltage is 4.2V, and the maximum charging current is 1C, that is, 2200mA)

(2) Under no-load conditions, the measures the output voltage, and the constant voltage potentiometer is adjusted to e the output voltage reach the floating charge voltage; (If you charge a 3.7V battery, adjust the output voltage to 4.2V)

(3) Measure the output short-circuit current with the 10A current stop (directly connect the two pens to the output end), and adjust the constant current potentiometer to e the output current reach the predetermined charging current value;

(4) The default charging current is 0.1 times the charging current; (The battery current in the charging proce is gradually reduced, gradually from constant current charging to constant voltage charging, if the charging current is set to 1A, then when the charging current is le than 0.1A, the blue light is off, the green light is on, at this time the battery is charged)

(5) Connect the battery and charge it.

(Steps 1, 2, 3, 4 are: the input end is connected to the power supply, and the output end is not connected to the battery.)

3. d as a high-power LED constant current driver module

(1) Determine the operating current and maximum operating voltage you need to drive the LED;

(2) Under no-load conditions, the measures the output voltage, and the constant voltage potentiometer is adjusted to e the output voltage reach the highest working voltage of the LED;

(3) a 10A current to measure the output short-circuit current, and adjust the constant current potentiometer to e the output current reach the predetermined LED working current;

(4) Connect the LED and test the hine.

(Steps 1, 2, and 3 are: input is connected to the power supply, output is not connected to the LED light.)

Note: When this module is d in exce of 3A and 35W, please strengthen heat diation!!!

Note:

1. The module input IN- do not short-circuit with the output OUT-; otherwise, the constant current function fails.

2. Ensure that the power of the power supply is always greater than the required power of the output load!

3. Module input does not have the anti-re function. Note the positive and negative directions of the power supply.

4. If the module wants full load output, the input voltage should be more than 8V, when the input voltage is 5V, the output power is about 15W. The maximum current value of the module is 4A, subject to the maximum output power, such as 17V output, the current should not be greater than 2A.

5. The module is equped with output short-circuit protection. Ar the short-circuit protection, the module automatically turns off the output and can be recovered by powering on the module again.

6. The module has input undervoltage protection function. The default value is about 4.2V. When it is lower than this value, the output will be automatically disconnected and the module can be restored by re-powering on the module (Note the voltage at the port of the module.

7. The module contains three indicators, constant voltage and constant current status indicator (red, constant current mode is bright), charging indicator (blue), full indicator (green, turn lamp current size is 1/10 of the set current).