# Battery charging circuit using 12V dc generator

This is a project work of power generation from speed breaker.I am using an IBL-100SW dc motor in my project as a generator to produce power.I am getting a voltage from 3V to 18V and current of 0.1mA to 6.8mA.The rpm varies from 1100 to 3000.But the time duration is very small like 2 to 6 milliseconds. Now I want to store it in a battery.I am a noob in electrical circuit design.Can anyone help me with the components and circuit diagram?Any type of readily available battery type will be good for me.

• If you are "getting current," then that means the output of your generator is connected to something. What is it connected to? – Solomon Slow Apr 10 '18 at 13:37
• I am measuring the current and voltage using two multimeters in a series connection.Just to record the output of the setup. – Anabil Apr 10 '18 at 13:38
• Something is weird, from a 1200W motor you get only 6.8mA at 18V? 0.1W? Please put a load on it , a 12V power light bulb in parallel to voltmeter and post results again. As I understand the ammeter now is showing the current through the voltmeter. For such short duration a capacitor is more appropriate. – Dorian Apr 10 '18 at 14:50
• And you're measuring a 2-6 msec transient with mulitimeters? Or are you getting 2-6 msec transients at several times per revolution? – WhatRoughBeast Apr 10 '18 at 18:53
• IMPORTANT: DO NOT go away. We want to help but we need you to help us to help you. Telling US as much information as YOU have available will help us to help you. A link to the motor details, a description of it (V, A, AC/DC, type, ...) and a clear description of what you are measuring and how and with what, Saying "the time duration is small" could mean a range of things. Doe sthat mean a pulse per cycle?. How do you measure it? etc. – Russell McMahon Apr 10 '18 at 23:31