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DIN 41773 PDF

This specification does not concern legal or safety standards. 26/11/, 1/3. 1 Charging characteristic: IUa (according to DIN ). Regime. Switching. transformer, input PF , low input harmonics (DIN (UI). Find the most up-to-date version of DIN at Engineering

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By using this site, you agree to the Terms of Use and Privacy Policy. If a battery is connected to a significant load during dun, the end of the Uo-phase may never be reached and the battery will gas and be damaged, depending on the charge current relative to the battery capacity. During this phase, the charge current decreases gradually to a small residual value that compensates for any self-discharge of the battery.

It consists of three phases or stagesto be executed by a battery charger. The voltage in the U o -phase is too high to be applied indefinitely hence, overvoltagebut it allows charging the battery fully in a relatively short time.

IUoU battery charging

The charging current is a compromise between charging time favoring high currentsthe prevention of damage due to overheating or gassing favoring low currentsand cost of the charger favoring low currents. The decrease is imposed by the battery. From Wikipedia, the free encyclopedia.

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This phase occurs when an IUoU charger is connected to a deeply discharged battery. The current in the I-phase stage 1 should be chosen depending on the capacity of the battery.

As a result of the current, the battery absorbs the charge and its voltage rises.

The purpose is to fully charge the battery in a relatively short time without reducing its life span and to indefinitely keep the battery charged as long as the charger is ddin.

The voltages in the U and U o phases stages 2 and 3 depend on the type of battery and the temperature. This page was last edited on 24 Mayat The battery capacity C is expressed in Ah units, typically the C 20 value based on a hour discharge time.

Stage 3 is called the U-phase or float charge statethe voltage is reduced 41773 a value that is safe to be applied for long periods weeks without significantly reducing the lifetime of the battery.

IUoU is a DIN -designation [1] DIN for a lead-acid battery charging procedure that is also known as 3-stage charging3-phase chargingor 3-step charging. A bad battery will have short I-phase and Uo-phase, but there is a risk 41773 gassingfurther damaging the battery.

In this stage, the battery is continued being charged at a constant over voltage U obut the charge current is decreasing. I-phase constant electric 4173Uo-phase constant over- voltageand U-phase constant voltage.

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IUoU battery charging – Wikipedia

The charger provides a constant current, typically the maximum current that the charger is capable of producing. Stage 2 is called the U o -phaseconstant-voltage boost stageabsorption stageor topping charge.

The three phases are: The U o -phase is concluded when the charge current goes below a threshold I minafter which the U-phase is entered. Batteries have varying numbers of cells typically six for an automotive battery and may be flooded-cell, absorbed-glass-matt AGMor gel-electrolyte types. The voltage U o may be the same as U max in the previous stage, or it may be taken slightly higher. Views Read Edit View history.

The charger limits the maximum voltage to U maxa constant or temperature-dependent maximum, typically around 2. Stage 1 is called the I-phase dinn, constant-current stageor bulk charge stage.

For the alternating-current system, see Three-phase electric power. In practice, it depends on the capability of the charger.

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