Recent content by core7916

For wiring I have used twisted shielded pair cables. When I am adding a common mode choke I am able to see reduction in emissions. Are there any other methods which I can try?

Can you please provide details on how can I check if it is common mode or difference mode emission? I am new to this topic and still learning. It would be really helpful.

This is a new board in which I am trying to solve the above mentioned problem. I am having one set of unit only. Will check this.

If the active board fails, then it automatically switches to another board and I need it to work identically. No only the active board will be connected to load, but if the active board fails then it switches to another board. Until I restart the unit, it doesnt come back to the expected voltage.

The unit consumes max 3A at 28VDC supply. Would you suggest any ferrite bead value?

Yes I have another main PCB that consists of relays to select which one of these PCBs must be active. Injectors are capacitive load.

There are signals given as input to actuators along with 28V supply. It is failing at all frequencies from 10kHz to 10MHz.

I'm seeking assistance and recommendations for CE-102 testing (MIL-STD 461). When I power on my unit, the emission levels significantly exceed the limit. Since the unit is already designed, I cannot make any internal modifications. Could you please suggest potential causes for this issue and...

In my project, I have two PCBs, each containing a fuel injector actuation circuit powered by a HRL3024S200P converter. Both PCBs include four injector circuits, which operate continuously. However, the injectors (4) are connected to only one of the boards at any given time, based on a selection...

PWM is given from a function generator.

Is there any method by which i can determine the rated voltage of a solenoid coil by using the coil resistance?

In my application I require the pump to open at less duty cycle. While testing I observed that when the supply voltage was increased to 24V the pump actuated at lesser duty cycle.

How can I verify that the coil can withstand 24V without causing any damage to it?

The pump actuates at minimum 20% duty cycle and above for 12V supply. Is there any way that I can check voltage rating(If the coil can withstand 24V?). Since at 24V the pump actuates at 7% duty cycle which is my requirement.

I have a fuel pump consisting of a solenoid coil. I have tested the fuel pump at 12V supply. The pump actuates at 20% duty cycle(200Hz frequency) and draws a current of 1.7A. When I increase the supply voltage to 24V it actuates at 7% duty cycle(200Hz Frequency), drawing a current of 0.6A. How...