Akanimo
Advanced Member level 3
Is R100 a dummy load or are you yet to indicate your load? What's the label LEAK*CURR? There should be a resistor (maybe 10k) from the base to the source terminals of the MOSFET.
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Is R100 a dummy load or are you yet to indicate your load? What's the label LEAK*CURR? There should be a resistor (maybe 10k) from the base to the source terminals of the MOSFET.
What current is required to flow through the panel-mount LED and what is the forward voltage?R100 + connector J9 is to connect a panel mount LED...
The hi-Z switch works with 24V input?...LEAK*CUUR is the output of the PCB and it will be connected to a high Z digital input switch,
And the current through the relay contacts, too?The current will flow through them will be very low...
Hi,
And the current through the relay contacts, too?
If so ... and if this is a long time installation.... then consider not to use a "power relay" but a "signal relay" preferably with Au contacts.
Read about "wetting current".
In the past I had such problems where the contacts went high ohmic...
Klaus
Added:
Datasheet says: minimum load 100mA/5V.
Also for the relay, it seems it's absolute max power dissipation is exceeded due to the direct connection of the 15V (which is higher than 12V) across the coil. You may need to connect a series resistor to limit the coil current.
Hi,
And the current through the relay contacts, too?
If so ... and if this is a long time installation.... then consider not to use a "power relay" but a "signal relay" preferably with Au contacts.
Read about "wetting current".
In the past I had such problems where the contacts went high ohmic...
Klaus
Added:
Datasheet says: minimum load 100mA/5V.
Calculate for resistor power dissipation so as to select suitable sizes. Also for the relay, it seems it's absolute max power dissipation is exceeded due to the direct connection of the 15V (which is higher than 12V) across the coil. You may need to connect a series resistor to limit the coil current.
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Calculate for resistor power dissipation so as to select suitable sizes. Also for the relay, it seems it's absolute max power dissipation is exceeded due to the direct connection of the 15V (which is higher than 12V) across the coil. You may need to connect a series resistor to limit the coil current.
For the LEDs you just posted link, you should consider selecting an appropriate value (and probably, size) for R100 depending on the number (and configuration) of LEDs that you will be connecting through the JP9 connector.
There will be just one LED connected to the JP9 terminal. Therefore, the maximum current flowing through the LED will be 17mA (according to the manufacturer)
I think R95 is too large. Use 100 ohm.