Showing posts with label battery. Show all posts
Showing posts with label battery. Show all posts
Wednesday, January 15, 2014
14 V battery charger circuit and troubleshooting
This circuit is also use operational amplifier IC LM324 to drive the VN64GA with the error signal and to control output voltage. This output voltage is pulsating DC , which is quite satisfactory for battery charging. This circuit also can be converted to the system regulated DC supply.
You do this by increased C2 and anoother electrolytic capacitor is added across the load. The respon time is very fast, determined by the op amp.
Schematic and troubleshooting below :
- AC cable disconnected
- Transformer is damaged or leaking.
- Broken or leaky diode.
- Installation of inverted foot elco.
- Instrallation of the components of the upside , particularly on the transistor , examine the placement of the feet emitter , collector and base.
- IC damaged.
- Soldering is less sticky.
- Line PCB damaged.
Wednesday, December 25, 2013
Battery Charger with Temeperature Sensor
Battery with a LM35 temperature sensor on the charger used to monitor the battery temperature is in charge. Battery temperature sensor is needed because the battery temperature will rise at the time in charge. Battery temperature sensor LM35 temperature sensor has high accuracy in monitoring the battery temperature, it is because the temperature sensor LM35 is a temperature sensor that can convert temperature changes into voltage changes linearly.
At the time of the charge a battery will experience changes in temperature, where the battery temperature will begin to rise when the battery began to fill. To avoid over heat the battery, the battery temperature sensor LM35 temperature sensor is required to terminate the battery charging current to avoid overheating.
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| Battery charger with temperature sensor schematic |
On the battery charger circuit temperature sensor with temperature sensor 35 lm above the R1 is used for setting the maximum value of the desired temperature. Therefore, when the temperature was in-charge the battery begins to rise and reach temperatures setup then this series will break the current battery charge.
Sunday, December 22, 2013
Car Battery Charger 12Volt Circuit Diagram
Car Battery Charger 12Volt Circuit DiagramThe aloft circuit claimed accept adeptness to anticipate array blackmail that accomplish electrolyte absent due to evaporation. This ambit will annihilate the problems by ecology the battery’s action of allegation through its attendant ascendancy ambit by applying a aerial allegation accepted until the array is absolutely charged. Back charging is complete, it turns on the red LED (LD2) and deactivates the charging circuit.
This ambit is fatigued to allegation 12V batteries ONLY. Certain accent should be taken back base up this circuit. They are the access of the agent to the ambit board, and those bartering accepted to the array actuality charged. These access should be fabricated with cables accepting a ample cross-sectional breadth to anticipate voltage-drop and calefaction accession back accepted flows through them.
Monday, December 9, 2013
Battery charger circuit
This cahrger based on chargeing voltage 2,4 Volts per cell , in accordance with most manufacterers recomendation. This circuit pulses the battery under with 14.4 Volts ( 6 cells x 2,4 volts per cell) at a rate 120 Hz.
Sunday, December 8, 2013
12V battery indicator level
The following sequence is useful to show the battery voltage (battery) 12 volts. Voltage level is shown with four lights led. To facilitate the reading of the led is arranged in a vertical array. Led top three chosen by the green LED while the lowest is selected the color red. If the battery voltage continues to decline (because of usage), the Led-Led will turn off sequentially from the top to the bottom.Until if battery voltage is below 11.83 volts then only the red LED that lights up which means that the charge batteries are empty. Even this red Led will die if the stress continues to drop to below 11.5 volts. The working principle of this circuit is a comparison of battery voltage with a reference voltage.
Schematic Battery level indicator
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