Three-phase Car Charger
In recent years, the widespread use of car chargers in electric vehicles is the so-called three-phase car charger.
The first phase is called constant-current phase; the second stage is called constant voltage phase; and the third phase is called phase trickle. From the perspective of electronic technology for the batteries: the first phase is called phase charging current limiting; the second phase is called the High Pressure phase; the third stage is called a low constant voltage phase, which is more appropriate. As to transition of Phase II and Phase III, the indicator light panels correspondently take changes. The first and second stages of the majority of car chargers are red lights, while a green light appears in the third phase. The mutual conversion of Phase II and Phase III is the decision of the charge current. This current is called the conversion current, which is also called the current turning point.
Although three-phase car chargers have the feature of changing light, including the one matching with brand-name cars, in fact, they are battery chargers with the characteristic of current limiting and constant voltage, and don't belong to three-stage car chargers. Generally, this type has a stable voltage, 44.2V or so, which is more effective than a high proportion of sulfuric acid battery. There are some rules for people choose car chargers:
1. When new batteries are put into use for 8-10 months, it is necessary to inspect and maintain the battery.
2. Routinely, a car charger matching with a famous car is selected, and usually needn't to test. Otherwise, a test must be carried out.
3. There is a non-power frequency of the SCR car charger transformer, with the current of 30A, voltage 12V-80V, which is adjustable. Before the electricity completely is cut off, it is forbidden to touch the battery.
by Shuoguan car charger
Article Source: ArticlesBase.com
