Rectifier Diode For Battery Charger Series AC120V Or

I will collect a lot of circuit electronics to teach my son and are useful for everyone.

Yes, we want it. Here is a low current 6V battery charger circuit.

Also, it can be a 6V 4.5Ah battery charger for 10hr charging.

It is good for battery low current no overheat, long-life battery.

For example, a power supply for general load and a low current battery charger circuit.

And also useful for others: nickel-cadmium batteries,nickel-metal hydride battery(also known as NiMH), etc.

The output current more or less depends on the voltage selected.

Table of Contents Show All 1) How this circuit works 2) Changing output voltage 3) Advantages of this adapter 4) Related Posts How this circuit works Look at the circuit diagram below.

Rectifier Diode For Battery Charger Series AC120V Or

First, the AC-voltage( both series AC120V or AC220V) to R1-1 ohms.

It is the resistor fuse to cut off the circuit when overloaded.

While the AC220V to the diode D1-1N4007 to rectified from AC (Alternating Current) to a pulsating DC (Direct Current) about 300V.

After that, The DC300V will via the filter capacitor-2.2uF.

Then, the Q1-transistor acting together with R5, C2, D2 and coil on top of T1.

Then the feedback circuit includes D3, D4, C3, C4, and R6, will control the bias.

They are special because it will work at frequencies around 30KHz.

Changing output voltage Choosing the voltage of the Zener diode In the circuit, we use number 1N5237 (8.2V 0.5W), causes the output voltage about 7.4V, for charge the 6V battery.

The output voltage of this adapter should be higher than the batterys voltage of about 20.

If we use a 12V battery, so the output voltage is about 14 volts.

The breakdown voltages (Vz) of Zener Diode should also higher than the output voltage is around 20.

The Zener diode in the circuit used 0.5 watts.

Parts you will need I buy this the mobile charger in the store near my house.

For the device has various polarity includes the Electrolytic capacitors,Zener diode,all diode,transistor,LED we should be careful in the assembly circuit.

If the output voltage is at 12V you need change C5-470uF 25V up.

Advantages of this adapter While is charging, the battery is not hot.

Thus, the life of a battery is a long time and can recharge several times.

When the battery is full, we can use it for a longer time than the normal high current charging.

The disadvantage is it takes about 3 hours to charge because it is the low current charging.

We can easily use this adapter as the power supply circuit at about 500mA, 12V.

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