- BrandBattery
principle of operation:
the design is based on the fly back topology. High switching frequency makes the components sizes to decrease, and hence reduction in the size. The efficiency of the unit is greater than 80. The input voltage is applied to the transformer primary which is switched at high frequency controlled by the feedback. The feedback is incorporated using opto-isolators. The output of the transformer is rectified using proper rectifier diodes. The output is further smoothened with the use of smoothing inductors to reduce the ripple to the desired level.
the battery chargers provide both constant voltage (cv) charging below the rated current and constant current (cc) charging if the battery tries to draw more than the rated current. In cv mode, the output voltage is well regulated against line and load variations. The charger shall withstand a short at the output for any length of time without damage and will restore to normal once the short is removed.
the charger is protected against input over voltage, the output voltage is shutdown and restores automatically when the input voltage is within limits. The design incorporates overload and short circuit protection.features:
- wide input voltage tolerance.
- high efficiency.
- overload, short circuit & reverse polarity protection.
- very low load & line regulation.
- output power up to 480w.
- rugged, reliable and tropicalised design.
- work with natural convection cooling (no forced air cooling required).
- the operating temp. Is -5°c to +55°c.
- input and output terminations and led indications.