The methods of DC boosting include:
1. Connecting two or more DC power supplies in series can boost the voltage.
2. When only voltage is required, a piezoelectric crystal can be used to boost the voltage. After applying voltage to the X-axis of the piezoelectric crystal, an increased voltage can be obtained on the Y-axis.
3. Use the method of "DC - AC oscillation - AC voltage - rectification - filtering - DC" to boost the voltage.
4. Use a DC motor to drive a DC generator for boosting.
5. Use DC amplifier unit to boost pressure.
Principle of DC voltage boosting: DC boosting is to increase the lower DC voltage provided by the battery to the required voltage value. Its basic working process is: high-frequency oscillation generates low-voltage pulses—— The pulse transformer boosts the voltage to a predetermined voltage value - pulse rectification obtains high-voltage direct current, so the DC boost circuit is a type of DC/DC circuit. Electronic ballast (stabilizer)
Supercharger, Includes three forms: exhaust gas turbocharger, mechanical turbocharger, and electrically assisted turbocharger.
The working principle of the electric-assisted supercharger:
The air is compressed by the current-assisted supercharger to increase the air intake density of the engine, thereby increasing the engine's power. At the same time, because the mixed combustion adjustment of the engine has been improved, the combustion efficiency is improved, and it can also save fuel and reduce emissions. It is an important technological progress in modern engines.
The most common application now is the engine exhaust gas turbocharger
In addition: the working principle of the turbocharger
The energy generated by the engine burning fuel ( About 1/3 of the internal energy converted from chemical energy (temperature, pressure, gas expansion speed, etc.) is converted into mechanical energy through the transmission, 1/3 enters the cooling system, and 1/3 is discharged with the exhaust gas
Turbocharger What the air conditioner does is to convert part of the last 1/3 discharged into the engine intake air to "preprocess" the gas, thereby saving part of the energy. The performance of the engine is: the incoming air has been compressed and has a certain temperature. and pressure (increased internal energy) are more conducive to full mixing with the fuel spray in the cylinder, thereby making combustion more complete, reducing impurities (otherwise carbon particles and their compounds produced by full combustion) and improving combustion efficiency