Today many battery chargers are available in the market for various types of batteries with voltage levels that can be configured including 6V battery charger in addition to the above voltage level such as 9V and 12V. Features of the battery charger is terminated automatically when the battery is fully charged.

6V Gel Cell Battery

But if you have knowledge of practical electronics. And you want to try to build a battery charger. This is a good idea. Due to assemble a cheap battery charger not take too long even components that are required not much. (See Figure. 6V battery charger)

Here is a 6V battery charger circuit diagram used for this type of Gel Cell batteries. The battery charger circuit diagram using two active components of the IC timer 555, power transistor TIP31C and other passive components.

6V Battery Charger Circuit Diagram

6V Battery Charger Circuit Diagram

This 6V battery charger requires a 10V DC regulated input voltage, and capable of supplying current to 2 amperes. Starting at 240 mA charging period and fully charged automatically switch to float condition (trickle charge) of 12mA. The capacitor used should be 50V ceramic type or better.

The 6V battery charger specification of these included using TIP31C as switching, 8-pin NE555 as Timer / Oscillator and for R4 to R7 is selected type 1% metal film. You can use a voltage regulated with a transformer that can supply current about 2 Amperes.

Both can begin to assemble accurately by using the components as required. Good luck experimenting and don’t let your hungry stomach. Here’s how to fill your own gel cell battery using a 6V battery charger.

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The term electric converter can be translated into the various interpretations. Changing wind power into AC power, water power into AC power, or vice versa, from electricity to heat the charcoal to be burned to an ember grill meat (smoker electric converter). But never expected to run out of ideas for the hobby to apply basic knowledge in the use of electronic power conversion.

This basis of power conversion is a concept that is applied in various fields. An electric converter really helps everyone who uses electricity in his daily life. A travel electric converter used to transform voltage 110V AC to 220V AC or vice versa. This concept is very simple. It’s just using a step-up/down transformer, then you are able to do it properly.

An electric converter is applied to a car or vehicle has become a necessity today. DC and AC power source needed his run electronic devices from inside the vehicle. A car electronic converter can be used to operate a laptop, DVD player, or even can function as a mini studio of a radio or television.

The power source of a car electric converter can be sourced from the car battery using the concept of DC-DC converter or DC to AC inverter is better known as car power inverter, which could be an inverter will provide an AC power source from 110V up to 220V.

Availability of power source in your car to provide an alternative for you to operate the electronic devices while driving. If you want to design your vehicle as a dwelling house for purposes of camping, the more likely to provide a power source, including a generator.

For areas that have sufficient wind power, you also can create a wind turbine. This may be done, even if only using a dinamo car starter. The point is that it needs an electric converter is an wind turbine electric converter that changes the voltage pulse into AC power. See the diagram (source)

Wind Turbine – Electric Converter Diagram

Wind Turbine Electric Converter

Thus a glimpse of the electric converter that can provide the possibility for those of you who like things related to power conversion. Assuming that electricity makes life so easy wherever located.  You can observe the possibility of a power plant that matches your neighborhood, then you are designing an electric converter.

See more: LM338 Power Supply Circuit – LED Power Supply Circuit

The 240V transformer is the main component necessary in making a linear power supply. Knowledge of 220V or 240V transformers may be designated on how to choose or use them correctly. For knowledge is required to view the physical form of the transformer which is translated in the form of the transformer wiring diagram.

110V To 240V Transformer-Voltage Converter

A 240V coil transformer has two parts namely primary and secondary coils. While based on the type of conversion is known the existence of step-up and step-down transformers. Physically, the voltage is usually printed label, so this will help in identifying the type of the 240V transformer.

When a 240V transformer is considered as a step-up transformer with a 240V AC output voltage, then the logic of this transformer has an input voltage 110V/120V AC. So if the coil to be used as input voltage 240V, the voltage will be found on other reels in the form of the output voltage 110V/120V. A transformer is known as step-up/down transformers, where you can use to increase or decrease based on the technical specification such as transformer.

240V Transformer Wiring Diagram

240V Transformer Wiring Diagram

A transformer of this type typically used in different outlets of AC voltages on countries that use it. When you bring your electronic equipment with input voltage of 110V/220V, or you are from USA and now in the UK, you need a 240V transformer as a voltage converter from 110V/120V, the U.S. to  U.K. voltage converter. Be careful because this is an AC voltage that can be dangerous and deadly.

It is recommended to further know the technical spec 240V transformer where you work with it. Since each electronic equipment has a certain amount of power that will use the installed power at the transformer. However, if this is only intended for understanding the wiring diagram of the 240V transformer.

Read more : LM338 Power Supply Circuit – Backup Power Supply Circuit.

In the market widely available variety of battery chargers with different technical features ranging from a low amperage to charge the system automatically. This feature is very necessary to improve battery charger system is good and reliable for various purposes, such as a motorcycle battery charger.

Here is a motorcycle battery charger circuit which also has a good feature. This feature of the motorcycle battery charger  is a feedback control circuit where the battery is fully charged condition at the maximum rate. If the battery is fully charged condition encountered, it will be marked with an LED that is turned on.

Motorcycle Battery Charger Schematic Diagram

This motorcycle battery charger is specifically designed for a 12V battery. Apart from some small-sized electronic components like IC LM350, LM1458, and the passive components, used a 18V step-down transformer 80 watt. You simply select a single output voltage 0-18V with a current of about 4-5A. The cable used should have the ability matching a little larger than the current passing. In order to prevent any change electrical energy into heat in the cables that can lower the voltage level.

When construction of the motorcycle battery charger is finished turn the TR1 in place zero value, then the steps for setting the control.

• check without connecting the battery, that both LED’s light up.
• Connect a car battery charger. Check that the LD2 is off and that a current (typically 2 until 4 A), flows to the battery.
• Turn the TR1 and check that the LD2 can turn and charge current to cut.
• Turn the TR1 to null value and charge the battery using the standard technique hydrometer (if not available, use a battery in good condition and fully charged).

Turn carefully so that the TR1 LD2 begins to turn and charge current drops of the motorcycle battery charger to a few hundred mA. If TR1 installed correctly then the next load will see the first LD2 will start to flicker, and charging the battery. When fully charged the battery then the LD2 will turn on fully.

Motorcycle Battery Circuit Diagram

Motorcycle Battery Charger Circuit

To TR1 no longer needs another adjustment. The Q1 is connected in series with the circuit of the battery and can be fired from the circuit R3-4 and LD2. The battery terminal voltage is obtained from the circuit R2, C1, TR1, D2 and activates the Q2 when the voltage terminals exceeds the value we are striving to TR1.

When an uncharged battery put on charge the terminal voltage is low. under this situation the Q2 turn off and Q1, fired in each half cycle of the circuit R3-4, LD2. The Q1 functions as a simple rectifier. While thr motorcycle battery charger charging the battery, the terminal voltage increases. If the terminal voltage rises above the level that we have set to TR1, then shifts the Q2 gate drive of Q1, it turns off, stop giving power to the battery and lights LD2, showing us that the loading is complete.

The Q1 and the bridge rectifier GR1, should be placed on a good heatsink for proper cooling. The M1 is an Amperemeter DC 5A, so we can monitor the charging current. Optionally can be placed a Voltmeter in parallel with the poles of the battery should have high input impedance, however, not affect the circuit measuring device of the motorcycle battery charger.

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The meaning here is the 110V converter to convert 12V DC voltage from the battery into 110V or 220V AC. Let us call this the DC to AC inverter. Why is that, because the term converter is usually devoted to a type of voltage conversion, for example, from AC to AC through a transformer, or DC to DC using an electronic circuit for it.

240V/220V to 120V/110V converter is better known as the step-up or step-down voltage converter. To convert AC voltage (AC) is very easy, just use a transformer that has the specifications mentioned above. With proper wiring, you have to use the tools immediately.

We return to our original topic, which is the 110V converter. For that we need a 12V car battery as a source, and through a converter chart below, we expect the output 110V AC voltage, which can be used to run any electronic equipment that requires AC power voltage as the source.

110V Converter Circuit Diagram

In this article, 110V converter details are not discussed because it was already explained in previous articles. That is just the key points that the 12V inverter or 110V converter can be used in power load to 120 Watts. The selected transformer capacity of 10A (P = VxI, 120×10 = 120W). However, this also needs to be adjusted towith the power MOSFETs used in this 110V converter circuit if you use a transformer with a larger ampere.

Necessary components in this 110v converter circuit, in addition to passive components, such as the diodes, resistor, capacitors and other consist of CMOS Hex Inverter IC CD4069UB used to generate the square wave. For a given voltage to the IC is an IC regulator 7805 will be used.

110V Converter Circuit Schematic

Square wave will be amplified by the transistor 2SC1815 and forwarded to the final amplifier in the form of a pair of transistor MOSFET 2SJ471 and 2SK2956. By using a transformer that passed through the 12V voltage is fed to the Drain (D) MOSFETs to convert DC to AC voltage on the transformer primary coil. The current will flow alternatively in through the primary windings of the transformer since the MOSFET is configured as bridge.

Because what you find in this article are the basic stage. Please learn more about the principles of  electrical voltage conversion. If you want to modify the 220V/110v converter.

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