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I have a stepdown transformer that converts 230VAC to 9VAC..9VAC is given to a bridge rectifier(1V drop across) and then to an LDO(0.5V drop across) that converts to 5VDC..i need to draw a maximum current of 100mA(worst case) from the 5VDC for my board operation..Few clarification i need is
1)...
Relay selection
I need to provide a NC relay on a 24VAC line which goes to a contactor coil.The max current through the line is 2A. The inrush current is aroung 10-15A. Do i need to use a relay that has contact that can carry greater than 15A or the max continous current of 2A..
Please provide...
Thanks all for your valuable suggestions.. There are lots of restrictions in my design due to safety constraints, board size, cost, Noise immunity etc.
Safety standards calls for not using diode in the detection path since it always fails short..board size is hardly 90 X 60mm where there are...
Is it possible to measure 0-24VAC accurately using Microcontroller (using a Optocoupler circuit). i need electrical isolation on my board..i cannot use a rectifier circuit for this 24VAC due to safety issues of diode getting shorted..moreover i cannot use a transformer here for isolation due to...
i'm using TMS470R1B1M in one of my designs with ULINK2 debugger.
ULINK2 has 20 pin, 10pin options for JTAG connectivity.
TRST signal is not available in 10 pin option of uLINK(1.27mm pitch connector)
Earlier i was using 20 pin JTAG connector option for debugging.In that case TRST pin of uC...
i'm using TMS470R1B1M in one of my designs with ULINK2 debugger.
ULINK2 has 20 pin, 10pin options for JTAG connectivity.
TRST signal is not available in 10 pin option of uLINK(1.27mm pitch connector)
Earlier i was using 20 pin JTAG connector option for debugging.In that case TRST pin of uC...
24 Bit ADC used in my circuit is behaving erratically in EMI environment..have provided line inductors for all the I/O lines..what should be done for making it PASS for EFT,Fast transient bursts for ±2KV, on I/O lines, RS232, RS485 etc
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