1. Product parameters:
Input voltage: DC5.0V-30V (lvp with undervoltage protection when the input voltage is lower than 4.7v, it is recommended to use it when the input voltage is higher than 7v. When the input voltage is lower than 7v, the output power will drop. The lower the input voltage, the smaller the output power)
Output voltage: dc0.6v-30v
Output current: 0-4.0a
Output power: 35w under natural heat dissipation, 50w under air cooling
Voltage accuracy: ±0.5% + 1 word, resolution: 0.01v, factory calibrated accuracy
Current accuracy: ±0.8% + 3 words, resolution: 0.001a, factory calibrated accuracy
Conversion efficiency: about 88%
Soft start: yes
Input reverse connection protection: yes, reverse connection does not burn
Output anti-flow: yes, it can be connected to the battery directly
Protection On short circuit: Yes, it can directly short the output terminal
Temperature protection (OTP): Yes, 100℃
Working frequency: 180KHz

Key description:
Press the UP/DOWN key briefly, and the voltage will be adjusted by default. Long press (fast increase/decrease) is supported.
Long press the SET button for 1 second to adjust the constant current value (current limit value);
SET and CV flash when adjusting voltage and Cc setting flash when adjusting current.
Press the SET key briefly to switch the display current/power w/capacity ah/energy wh/time h;
press the ON/OFF key briefly to turn on/off the power output;
press the ON/OFF button for 2 seconds to turn on the display input and output voltage.

When CC is set, a constant current value will be adjusted by default. When the lead is driven, fast dimming can be realized by pressing UP/DOWN, which is very convenient!

2. Interface setting operation instructions:
2.1. Press and hold the SET button for 3 seconds to enter the setting interface;
2.2. Adjust the parameter size through the UP/DOWN key, support long press (fast increase/decrease), short press SET key to change the parameter to be adjusted;
2.3. In the oah/oph/oh/oh/oh/oh/oh/off/oh
2.4. In the oah/oph parameter interface, long press the “on/off” button to select the capacity range (9. 999h/99. 99ah/999.9 a/99ah, nine. 999wh/99. 99wh/999. 9wh/99wh)
2.5. After the parameter is set, press and hold the set button for 3 seconds to exit the setting interface and automatically save the setting parameters;

Note: After the product is protected, the output will be off, and the LCD will display the corresponding protection code (lvp/ovp/ovp/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oh/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/oph/oah/ The power chip itself also has various protections. If the chip itself is protected, the op will be displayed.

3. This product has a lock function:
Long press the set button for 5 seconds to lock the voltage and current set to prevent incorrect operation! After locking, press and hold the set key for 5 seconds to unlock!
4. Product use:
4.1. It is used as a common voltage rising and falling power supply with overvoltage/overcurrent/overcurrent/overtemperature/undervoltage protection;
(1) Set the voltage value.
(2) Set the constant current value (overvoltage protection value); (For example, if the constant current value is 3.00A, the maximum current can reach 3A when you use the product, and when the current reaches 3A, the LCD will display “CC” status, otherwise the LCD will display “CV” status)
4.2. Use as a battery charger
Products without constant current function cannot be used to charge the battery. Due to the large pressure difference between the battery consumed and the charger, the charging current is too large, and the battery is damaged. Therefore, the battery should be charged with constant current at first. When the charge reaches a certain extent, the battery can be automatically switched to constant voltage charging.
(1) Set the floating charge and charging voltage of the battery to be charged; (If the parameter of the lithium battery is 3.7v/2200mah, floating charge voltage is 4.2v; if it is a 12v rechargeable battery, generally set the floating charge voltage to about 14v)
(2) Under no-load conditions, set the voltage value to make the output voltage into the floating charge voltage; (If the 3.7v lithium battery is charged, adjust the output voltage to 4.2v).
(3) Under load conditions, set a constant current value (charging current of the battery);
(4) Connect the battery and the charger.
4.3. Used as a constant current LED driver
(1) Determine the current voltage and maximum working voltage of the LED you need to drive;
(2) Under no-load conditions, set the voltage value and current value to make the output voltage into the maximum working voltage and current of the LED;
(3) Connect and test the machine.
This product can adjust the constant current value (between the working current of 0) to realize the cable dimming of LED and not stroboscope!!
5. Function details
5.1 Capacity/energy/running time data analysis:
The data will be automatically started after the power is turned on (on), and the value of the previous state will be displayed after the power is turned off (off). After the power is turned on again (on), the recording will automatically start again; In the corresponding interface, press the / off button for 3 seconds will automatically reset the corresponding data.
5.2 Set maximum capacity/maximum energy/maximum running time
5.2.1. Set the maximum capacity (oah)/energy (oph): When the oah/oph/oph (oph)/energy (oph) function is activated: the power automatically turns off the output and flashes “oah” / “oph”; After the alarm is released, the capacity/capacity/energy statistics are recorded;
5.2.2. Set the maximum discharge time (ohp): When the ohop function is activated, when the power operation time is greater than the set maximum discharge time, the power automatically turns off the output and flashes “ohp”; After the alarm is released, the time statistics will be automatically cleared;
This function can well understand the power supply of quantitative/timing.
Note: When the oap/oph and oap functions are not activated, the power supply will automatically record the capacity/energy time and operation time. When the oah/oph and oh and oh functions are activated, the power supply will automatically turn off the output when the oh function is activated, the power supply operation time is a countdown mode;
6. Precautions:
6.1. Vin-of vin-of input module must not be short-circuited with output out-, otherwise the constant current function will fail.
6.2. Please ensure that the power of the power supply is always greater than the power required by the output load!
6.3. If the module wants to output full load, the input voltage shall be more than 8v. When the input voltage is 5v, the output power is about 15w; the maximum module current value is 4a, provided that the maximum output power is limited, such as 18v output, the current shall not be greater than 2a.
6.4. The module has the function of input voltage protection, which is about 4.7v by default. When it is lower than this value, it will automatically cut off the output, and when the voltage is higher than 4.7v, it will automatically restore the output (Note: 4.7v is the voltage at the product output, when the input current is relatively large, do not ignore the partial voltage on the input wire).