• 0 out of 5

    Adjustable Power Supply Voltage Regulating/Reduction – LM 2596S


    Excellent for powering GSM modules, charging batteries, etc

    Input: 3~ 40V; Output 1.25 ~ 35V ( Adjustable)

    Max 3A Output Current

    Suggest to work within 2.5A for long term use

    Configurable to charge different kinds of sealed lead acid batteries.

    Configurable to charge mobile phones at 5V with a very smooth output voltage.

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    Step-Up Step-Down Constant Voltage Constant Current Converter Module


    This module has the popular LM2596 (Buck Reducing)  and LM2577 (Boost Up) power converters on board. It is therefore able to step-up or step-down power from a variety of PC power sources and deliver steady power to a load.

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  • 0 out of 5

    TL431 Voltage Reference


    The TL431 is a three−terminal programmable shunt regulator diode. Allows you to set voltages to a chosen voltage.


    • Programmable Output Voltage to 36V
    • Voltage Reference Tolerance: ±0.4%, Typ @ 25°C (TL431B)
    • Low Dynamic Output Impedance, 0.22 ohms Typical
    • Sink Current Capability of 1.0mA to 100mA
    • Equivalent Full−Range Temperature Coefficient of 50 ppm/°C Typical
    • Temperature Compensated for Operation over Full Rated Operating Temperature Range
    • Low Output Noise Voltage


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    Voltage & Current Sensor – MAX471


    A module for measuring voltage and current and can be interfaced to a microcontroller or Arduino with ease.

    • Voltage range: 25V (Arduino at 5V)
    • Voltage range: 16.5V (Arduino at 3.3V)
    • Test Current range: 3A


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    Voltage Sensor

    Due to the current wide range of electronic products , power supply voltage is also different , in order to detect it needs a suitable voltage detection module and the controller. controller analog interface detects the input voltage up to 5V, ie greater than the voltage of 5V will not be detected.
    2014 latest voltage detection module can solve this problem and achieve greater than the voltage of 5V is detected , this module is based on the design principles of the resistor divider , make red terminal interface input voltage narrow five times , analog input voltage up to 5V , then the input voltage of the voltage detection module can not be greater than 5V × 5 = 25V ( 3.3V system, if used , can not be greater than the input voltage 3.3Vx5 = 16.5V). Because AVR chips used in 10 AD, so the simulation resolution of this module is 0.00489V (5V / 1023), so the minimum input voltage detection module detects voltage 0.00489V × 5 = 0.02445V.
    By 3P sensor cable plugged into the sensor expansion board , not only can easily detect the size of the battery voltage , monitoring interactive media works or battery-powered robot power, can also display the voltage produced by the voltage monitor IICLCD1602 LCD module .
    Product parameters:
    1, the voltage input range : DC0-25V
    2 , the voltage detection range : DC0.02445V-25V
    3, the voltage analog resolution : 0.00489V
    4, DC input interface : red positive terminal connected to VCC, GND negative pole


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