#12 volt power converter series#

You can use this DC to DC 12v to 6v converter circuit with any other circuit by taking voltage across the 6.2v zener diode. LED indicators, in over-voltage protection, in reference to voltage circuit. The circuit 12v to 6v reducer shown below is by using a zener voltage regulator, it can be used for (1-800mA) medium current drawing circuit eg.

Then choose the standard value of the obtained resistor nearest to it. You need to pick a resistor value either R1 or R2 ( also depends on load impedance) and solve for other.

You can get the required voltage with this formula: One 12v battery/ power source, 1.2k-ohm resistor, some wires. This type of circuit is not that popular among the makers because of low current, thus not recommended for use in projects. You can take the output from resistor R1.

#12 volt power converter series#

You can drive few LEDs in series across the resistor R2 (1.2k) if you are using a 12volt battery in the input end. The schematic below shown below is the 12v to 6v reducer for a small current drawing circuit, or to take reference voltage in comparator circuit or circuit for indicator LED. A very convenient and compact circuit can be implemented with modern solutions.ġ2v to 6v converter using resistors as a voltage divider: Consider the value of resistors in kilo-ohms so as to reduce power consumption.Īlso, check the 12v to 6v regulator using the transistor below, this circuit is almost obsolete as there is various single package IC available to buy and use. It gives an approximately required output when R2 and R1 are chosen to equate the formula. This the formula for the output voltage of 12v to 6v reducer using LM317. The formula for output voltage is given as: (for more detail on LM317 regulator and its working go to this link) The LM317 is an versatile IC, with the feature of adjustable voltage regulation & capable of supplying regulated voltage…. The dropout voltage of this IC is very low as compared to other ICs, and thus the i/p voltage must be at least 1.5V or larger than the required output voltage for this IC to be working.Ī 12v power supply, a 1.8k ohm resistor, 6.8 kilo-ohm resistor, 10uF capacitor, 1.0uF capacitor, IC LM317 attached with the heat sink. A heat-sink is required to cooling the IC from the heat generated also prevents it from damaging. It is suggested to add an input capacitor Cin and the o/p capacitor Co (without this capacitor it works but regulation could be affected). Here, the voltage divider circuit is used with LM317 gives a fixed o/p of 9v. Generally, LM317 is found at variable power supply circuits that give regulated voltage (1.25V to 37V) on changing the voltage on pin no.1.

It is useful for medium to high current circuits (1 Ampere to 1.5 ampere+) It can also be used as a current regulator in the circuit.Ī 12v to 6v dc converter can be made with a popular IC LM317 voltage regulator as this IC gives adjustable output DC voltage with some changes in the external circuit. The IC is designed so that it can be modified to work as short circuit protection for your critical circuits. This is called “drop out voltage” in technical terms.Ī 12v power source, 10uF capacitor, 0.1uF capacitor, IC LM7806, a Heat-sink, wires or connectors. The i/p to o/p voltage difference should be maintained at 2Volts. There is a possibility of IC destruction if the heat-sink is not connected. The heat sink must be connected to this regulator IC so to prevent it from heat damaging. It is recommended to connect the input capacitor ‘Cin’ and an output capacitor ‘Co’ to the IC 7806 according to the datasheet. It is generally used for mid current application from few miliapms and up to 2 Amps. LM7806 is a fixed voltage regulator IC that regulates the input voltage used in the electrical and electronic circuit.Ī step down 12v to 6v with IC LM7806 is constructed as shown in the schematic below.