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  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
  • Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards
Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards

Automatic DC-DC Auto Buck Boost Step Up/Down Supply Power Module Voltage Output Adjustable Geekcreit for Arduino - products that work with official Arduino boards COD

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                        Features:
                         
                        1. Wide voltage input 5-30V, wide voltage output 0.5-30V, can both boost and step down. For example, if you adjust the output voltage to 18V, then the input voltage will change between 5-30V and will output 18V constant; For example, if you input 12V, adjust the potentiometer to set any output of 0.5-30V.
                        2. Use external 60V75A high power MOS, parallel high current and high voltage Schottky diode SS56. It is not comparable to the SS34 of the 6009 or 2577 scheme, because according to the buck-boost principle, the withstand voltage of MOS and Schottky is greater than the sum of the input and output voltages.
                        3. Iron silicon aluminum magnetic ring inductance, high efficiency. No inductive howling in constant current mode.
                        4. The current can be set to limit the output current, constant current drive, and battery charge lamp.
                        5. With output anti-backflow function, do not need to add anti-backflow diode when charging the battery.
                         
                        Specifications:
                         
                        Input voltage: 5-30V
                        Output voltage: 0.5-30V
                        Output current: can work stably at 3A for a long time, and can reach 4A under enhanced heat dissipation
                        Output power: natural heat dissipation 35W, enhanced heat dissipation 60W
                        Conversion efficiency: about 88%
                        Short circuit protection: Yes
                        Working frequency: 180KHZ
                        Size: 65x32x21mm
                         
                        Instructions:
                         
                        1. Use as a common buck-boost module with overcurrent protection
                         
                        (1) Adjust the CV constant voltage device to make the output voltage reach the desired voltage value.
                        Use the multimeter 10A current file to measure the output short-circuit current (directly connect the two test leads to the output terminal), and adjust the CC constant current potentiometer to make the output current reach the predetermined overcurrent protection value. (For example, if the current value displayed by the multimeter is 2A, then the maximum current can only be 2A when you use the module, and the red constant voltage constant current indicator will be on when the current reaches 2A, otherwise the indicator will be off)
                        Note: When using in this state, since the output has a current sampling resistor of 0.05 ohms, there will be a voltage drop of 0~0.3V after the load is connected. This is normal! This voltage drop is not pulled down by your load, but falls to the sampling resistor.
                         
                        2. Use as a battery charger
                         
                        Modules without constant current function cannot be used to charge the battery. Because the voltage difference between the battery and the charger that consumes electricity is too large, the charging current is too large, causing damage to the battery. Therefore, the battery should be used at the beginning. Stream charging, when the charging reaches a certain level, it automatically switches back to constant voltage charging.
                        (1) Determine the float voltage and charge current of the rechargeable battery you need; (If the lithium battery parameter is 3.7V/2200mAh, then the float voltage is 4.2V and the maximum charge current is 1C, ie 2200mA)
                        (2) Under no-load conditions, the multimeter measures the output voltage, and adjusts the constant voltage positioner to make the output voltage reach the float voltage; (If charging the 3.7V lithium battery, adjust the output voltage to 4.2V)
                        (3) Use the multimeter 10A current file to measure the output short-circuit current (directly connect the two test leads to the output terminal), and adjust the constant current potentiometer to make the output current reach the predetermined charging current value;
                        (4) The charging lamp current defaults to 0.1 times the charging current; (the battery is gradually reduced during the charging process, gradually changing from constant current charging to constant voltage charging, if the charging current is set to 1A, then when When the charging current is less than 0.1A, the blue light is off, the green light is on, and the battery is charged.
                        (5) Connect the battery and charge it.
                        (Steps 1, 2, 3, and 4 are: input terminal is connected to the power supply, and the output terminal is not connected to the battery.)
                         
                        3. As a high power LED constant current drive module
                         
                        (1) Determine the operating current and maximum operating voltage at which you need to drive the LEDs;
                        (2) Under no-load conditions, the multimeter measures the output voltage, and adjusts the constant voltage positioner to make the output voltage reach the maximum working voltage of the LED;
                        (3) Measure the output short-circuit current with the multimeter 10A current file, and adjust the constant current potentiometer to make the output current reach the predetermined LED operating current;
                        (4) Connect the LED and test the machine.
                        (Steps 1, 2, and 3 are: input is connected to the power supply, and the output is not connected to the LED.)
                        Note: When using this module over 3A, 35W, please strengthen the heat! ! !
                         
                        Precautions:
                         
                        1. Module input IN-disable and output OUT- short circuit, otherwise the constant current function will be invalid.
                        2. Please ensure that the power of the power supply is greater than the power required by the output load!
                        3. Module input has no input anti-reverse function, please pay attention to the positive and negative direction of the power supply.
                        4. If the module wants full load output, the input voltage should be 8V or more. When the input voltage is 5V, the output power is about 15W. The module current value is up to 4A, subject to the maximum output power, such as output 17V, the current should be no more than 2A.
                        5. The module has output short-circuit protection. After short-circuit protection, the module automatically turns off the output, and the module can be restored after power-on. If your power supply has no output current-limit protection, it is recommended to connect the fuses in the front end of the module to improve the safety factor.
                        6. The module has input undervoltage protection function. The default is about 4.2V. After this value is lower, the output will be automatically disconnected and the module can be restored after power-on (note that the voltage at the module port is larger when the input current is larger. Do not ignore the partial pressure on the input wire).
                        7. The module contains three indicator lights, constant voltage constant current status indication (red, bright in constant current mode), charging indication (blue), full indication (green, the size of the rotating current is 1/10 of the set current) .
                         
                        Package Included:
                         
                        1 x DC-DC Auto Buck Boost Step Up/Down Supply Power Module









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