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Recent content by apsua

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    220VAC Input Burning Problem

    Thanks for the replies. If we change the SAFE OFF limit to 20VAC, but instead can we filter the voltage that is produced on the way from source to controller? To make the circuit smaller and cheaper.
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    220VAC Input Burning Problem

    Thanks for advice, I will order on Monday to test. But this part seems to be rare on market. I should find alternative, too.
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    220VAC Input Burning Problem

    Thanks for explanation, Safe OFF limits 130V Safe ON limits 160V We can react on both halfwaves.
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    220VAC Input Burning Problem

    If the resistor is 16k without the varistor, we will need 5W resistor, too big. I am using the varistor not to let voltages under 150V. If I will remove the varistor, how will I limit it?
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    220VAC Input Burning Problem

    I didn't understand what numbers you are asking, but the function of this circuit is; Checking the 220VAC input which can change between 180-240 VAC in different places, and 24 VDC output is generated that goes to mcu for information and to a relay coil for control. In this circuit I want to...
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    220VAC Input Burning Problem

    Hello, The varistor partname is 7D201K. You say the optocoupler LED won't stand the high reverse voltage, should I use two direction dioded optocoupler, like SFH620A-2? There is three stage amplifier, the 140A voltage at the end is used for operating relay. The input is the mains voltage, and I...
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    How to do this in CCS PICC ?

    Hello, I couldn't see the pic16f527.h and pic16f527_registers.h in your codes. (The second one, you should generate in the Ccs c ide, with the name you will give). The portc etc. are defined in one of these.
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    220VAC Input Burning Problem

    Thanks for reply. No, 140A is a symbol. Can you give an idea to what to do to make it better?
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    220VAC Input Burning Problem

    Hello, I have an 220VAC input circuit as below: The reason we are using varistor in the circuit is to prevent the unwanted electromagnetically produced voltages in the shaft around over 100 Volts. This was working well, but recently in some place with high voltage inputs of 230-240VAC started...
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    CANBus Circuit Replacement

    Hello, I have a design for CANBus communication for both end as below: This is a sample circuit from Bourns datasheet. But the parts are expensive, can you give advices for cheaper design with similar protection? Thanks in advance.
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    [ARM] CAN Message Interrupts Service

    Hello, I think the the interrupt will be disabled when the isr is being processed, so the new coming data will be ignored. It should be processed after the first one is done.
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    [SOLVED] Stack Underflow When the Number of an Array is Increased

    Thanks for help. If the bug still exists, I think I should report the bug.
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    [SOLVED] Stack Underflow When the Number of an Array is Increased

    Hello again, The problem seems to happen because the array 'recordsMix[3]' address(which is passed to ptr) is 0x0FE. We are shifting 3 bytes, so we are shifting 0xFE, 0xFF and 0x100. Please see the assembly code of ShiftToRecords again below: .................... void ShiftToRecords(int8 *ptr...
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    [SOLVED] Stack Underflow When the Number of an Array is Increased

    @andre: the maxFloor variable indicates how many times the shifting will be done, if it is an unexpected value of it, only an unwanted value will be seen for the result value. The address shouldn't change I think. Anyway, after the debug this night, I will write the results. @Okada: Yes, I am...
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    [SOLVED] Stack Underflow When the Number of an Array is Increased

    @FvM: I am using 5.015 version of CCS C. Thanks, I will make a debug and check the points you say tonight, will write the results. @Andre: Yes, I also think and also see in debug process that, there is no problem about the call and return numbers to cause the stack underflow error. It seems to...
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