Dual Mode Inverter Battery Charger


Here is a dual charger for Inverter battery. It can charge the battery via Solar panel as well as from AC power to keep the battery always in top condition. Even though a 12 volt Solar panel gives around 20 volts in full sunlight, it is available only three or four hours in a day. During the remaining hours, the intensity of light is very low and the condition worsens in cloudy and rainy days. This results in incomplete battery charging that ultimately leads to memory effect and permanent damage of the battery. This charger shifts the charging to AC mode when the voltage from solar panel reduces below 12 volts and restores the solar charging when the sunlight is sufficient enough again.

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Magnetic Proximity Sensor. Sensor Circuit.5


 Hall Sensor can be used as a Magnetic Proximity sensor to Switch On/Off circuits or in combination with electronic door lock. The Hall sensor is a semiconductor device and its output depends on the presence of absence of a strong magnetic field. Hall sensor HSI MH183 is used in the circuit to demonstrate the working of Hall Sensors. MH 183 is a unipolar Hall effect sensor IC. It incorporates advanced chopper stabilization technology to provide accurate and stable magnetic switch points. The design, specifications and performance have been optimized for applications of solid state switches.  HIS MH183 has a transistor at the output which sinks current in the presence of strong South Pole magnetic field. Output turns high if the magnetic field weak and turns off if there is  no magnetic field.

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