Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
In this case 4 Ampere goes to your battery charging and 1 Ampere goes to your load.
Since the load is presumably stable, it will not start using 5 times as much power when the battery is being charged, it might however use slightly more power since the charging voltage might be higher then the...
I have to say I agree with FVM,
immunity might be a problem when I see this schema.
First read to what standards You have to comply, and which test levels You have to fulfill.
With this in mind You start your designing and your layout.
I wouldn't do this, use an optocoupler with antiparallel photodiodes if You require both halves of the wave or place a diode antiparallel to the photodiode if You don't.
(applying 6 Volt might limit the lifetime)
Further the resistor should take care of limiting the voltage/current to safe limits.
Maximum reverse voltage is 6 Volt for this optocoupler (Page 3 of the datasheet)
Your forward voltage is 1,4 Volt, You have to calculate a proper resistor in serie to limit the current and to cause enough voltage drop over the resistor so that the input terminals don't see the full 24 Volt.
So...
I don't see the attachment and to be honest I don't know what a bus door controller is ;-)
I can however give You a few hints on proper design procedures for EMC.
Most important is a decent low impedance ground structure.
For radiated fields provide a path where these disturbances can flow...
Let me guess, You are switching an inductive load.
This can be a valve, a standard transformer etc. etc. with a standard relay.
Please tell which loads You try to switch, take pictures of the setup and show how You did it.
If this is the case please also include a clear picture of the layout...
One second thought, in case of full isolation between secondary and primary side there should be some isolation amplifier in the measurement circuit.
The power supply suggests isolation but it all depends on how the measurement signals are processed in this case.
Actually I think there is something wrong about this.
Did You measure with an Ohm meter between Phase and protective earth (without voltage of course)?
You can not remove C5 since this is your return path for common mode noise.
(this capacitor usually only exists in this place with isolated...
When You have a higher voltage available a tesla coil would indeed be a great gadget to do this.
Another thing You might try to charge a solenoid and disconnect it by a relay, this would generate high voltages with a rise-time of a few nanoseconds up to the breakover voltage of your relay...
Why don't You use one of the IRF high-side driver (IRF2101 or similar) for this purpose.
It is the same setup and from what i remember it was available in Proteus.
@Varunkant2
There is no reason for confusion.
A transistor is saturated when a further increase of base current won't result in a lower VCE.
A mosfet is saturated when a further increase of gate voltage won't result in a lower VDS.
In some country's its called triode area, some other country's...
I used this setup with the sources coupled together, however this was a very high power application (several channels of 100+ Ampere's) and I used N-mosfets.
The reason I chose this setup was lower dissipation then with a P-mosfet since they have a higher RDSon.
I think it all depends on what...
Re: rdson wiki
At school they thought me that a transistor is saturated when a further increase of base current or gate-voltage won't result in opening the transistor or mosfet any further.
The linear range is between Vth and Vsat.
Have a look at the following "book" from the IRF website and...
If You apply +5 Volt to the gate it should start conducting, however there is a problem with your load.
Let's assume 2 Ohm of load and 0,5 Ohm RDSon (reality is worse)
At 300 Volt this means 120 Watt of heat your load and the mosfet has to dissipate 20% of this.
This is completely ignoring that...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
