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Recent content by DIGITRONIC

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    CPU fails to start , SMPS ok

    Dear All, I am facing a problem with my CPU(desktop),it fails to start. Motherboard led is not working,no beep sound from CPU and fans are also not working. I have tested the SMPS with another desktop and it's working fine while in my desktop the fan of smps is not functional. Removing or...
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    Help Recognizing LCD 21 Pin

    Dear All, I have seen a LCD (in a weighing machine) looks like 16x2 but it has 21 Pins.I have searched a lot but not found any 21 Pin LCD,is this device specific?
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    SMD Components In India

    Hi All, Today I have serviced my UPS,just replaced 1P & 2F with BC547/BC557 in driver section. It's working fine,but I need the SMD transistors.Where can I get it in India? Regards
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    Programming MC908JL3CPE

    Thanks,hope this will work.
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    [SOLVED] Power supply behaviour

    I am personally using 120AH+120AH in parellal with my inverter for three and half years,without having any trouble. So I have used the word "either" and "practically seen". Thanks
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    Programming MC908JL3CPE

    Dear All, I have a couple of MC908JL3CPE,and I don't want to waste them. Googled a lot about this MC and found this as outdated. Now my question is how can I program this controller and which programmer should I use. Currently I am working with JDM by Fragrance and the datasheet of MC is...
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    [SOLVED] Power supply behaviour

    It's very important that both batteries must be similar in terms of volt and AH, either in series or parallel. I have practically seen that the performance is well also in parellel (with similar batteries).
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    [SOLVED] Power supply behaviour

    I agree ,because if the load is according to bigger one then the battery with lower capacity will not tolerate the current and surely the lower capacity batteries plates will burn.
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    [SOLVED] Power supply behaviour

    If the batteries are connected in parallel total capacity will be bat1+bat2 (200+18), and the current will flow towards lower volt . In your case the voltage of both bat is equal so no current will flow from 200AH to 18AH . Thanks
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    Charging Principle in Sine wave Inverters

    Thanks pnjbtr. I have seen practically that a 13.5v/10A transformer (input 220v/50hz) charges a battery much faster than a digital charger(7Khz/13.5v). What is the reason behind this? Thanks
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    Charging Principle in Sine wave Inverters

    Thanks for your feedback,you have correctly understood my problem . Most of the brand uses PIC16F72 to control current and volt.How it works? Thanks
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    Charging Principle in Sine wave Inverters

    I am talking about charging 120Ah or 150Ah battery.
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    Charging Principle in Sine wave Inverters

    I know LM317 is used as charging regulator,but my question is about the inverters in which H-bridge has been used in output section. Thanks - - - Updated - - - I know LM317 is used as charging regulator,but my question is about the inverters in which H-bridge has been used in output section...
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    Charging Principle in Sine wave Inverters

    Which charging technology is used ,in sine wave inverters or home UPS, by leading companies? Thanks
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    How to generate PWM?

    Dear jigar, Thanks for such a nice video ,it helped me a lot.

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