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I am using 3.6v cell 19Ah (EVE - ER34615) to power the SIM900D module. The problem is I need help in the selection of proper bypass capacitor. According to battery's datasheet, it can provide max continuous current of 400mA and maximum continuous current of 230mA while SIM900D requires the...
I want to turn on/off my GPS(SKM53) using transistor based circuit as it consumes too much current 45mAh so i want to save my battery.
I need help in solving this problem keeping in mind the following limitations :
1. My battery voltage is 3.4v
2. GPS current requirement is...
I have an AC bulb operating at 220v 50Hz , i want a circuit that determines automatically either the bulb is fused or not. I need 5v and 0v logic for this purpose as i need this feedback for the micro-controller.
I have considered several solutions for this purpose :
1. When the bulb...
Hello guys !
I simulated a modified sin wave inverter in Proteus, the out is perfect 220v but when i attach a load it voltage drops to 1v. I dnt know why is loading effect happening in transformer. Kindly check the schematics and give me some solution to solve this problem :
These are the...
I have speakers Edifier R100.
Here are the specifications :
I am not satisfied with its performance, the base got too noise when i increase the volume. I want to modify them using any high power amplifier.
As Input Impedance: 10K Ohms , can...