rksiwal
Newbie level 5
Dear all,
The attached zip file contains 2 *.bmp files.
1. present.bmp
2. Proposed.bmp
There is no software or firmware issue. It is a hardware.. kindly help me to get through. I have already spent many grands money in testing.
Problem :
1. I made the circuit as present.bmp All the components were working fine. The IP camera was a bit slow(weak) and camera motors used to malfunction (stop) after 1-2 mins of operation but the camera used to keep sending the video . So I thought that they are getting less current.
2. So I put one more 7805 in parallel as shown in proposed.bmp The complete setup worked for 10 mins then i switched it off. In the morning when I again tested the project, the ip camera motors moved for some time and then stopped. and they never moved again. done all the testing and reached the conclusion that IP camera is not switching ON. May be its power supply circuit (inside the camera is burnt (99.9% probability)).
Requirement:
1. Since I had connected 4 x 7805 in parallel i.e. I got a supply of 5v 4A , taking tolerance into consideration, lets say I got 5v 3.25A Now 0.5 - 0.75A is taken by micrcontroller. so we are left with 5v, 2 - 2.5A. So did the camera blow up due to large current?. Kindly correct the calculations.
2. Since at 5V camera would take only 2A, so is it possible that (in any way) 3A or more had passed through camera (blowing up the camera).
3. I am going to make the changes as shown in proposed.bmp except putting 4 x 7805 in parallel (will use 3 x 7805) .
4. kindly explain snubber circuit in simple words. have visited many sites ...but is quite complicated to understand.
5. Another portion for consideration,as you wold have noticed by now, I am using 5-6 voltage regulator ICs...so there is lot of head being generated even after placing the heat sinks.. Kindly suggest something for a cooler circuit.
Kindly guide me...
Thanx a lot for your kind concern...
The attached zip file contains 2 *.bmp files.
1. present.bmp
2. Proposed.bmp
There is no software or firmware issue. It is a hardware.. kindly help me to get through. I have already spent many grands money in testing.
Problem :
1. I made the circuit as present.bmp All the components were working fine. The IP camera was a bit slow(weak) and camera motors used to malfunction (stop) after 1-2 mins of operation but the camera used to keep sending the video . So I thought that they are getting less current.
2. So I put one more 7805 in parallel as shown in proposed.bmp The complete setup worked for 10 mins then i switched it off. In the morning when I again tested the project, the ip camera motors moved for some time and then stopped. and they never moved again. done all the testing and reached the conclusion that IP camera is not switching ON. May be its power supply circuit (inside the camera is burnt (99.9% probability)).
Requirement:
1. Since I had connected 4 x 7805 in parallel i.e. I got a supply of 5v 4A , taking tolerance into consideration, lets say I got 5v 3.25A Now 0.5 - 0.75A is taken by micrcontroller. so we are left with 5v, 2 - 2.5A. So did the camera blow up due to large current?. Kindly correct the calculations.
2. Since at 5V camera would take only 2A, so is it possible that (in any way) 3A or more had passed through camera (blowing up the camera).
3. I am going to make the changes as shown in proposed.bmp except putting 4 x 7805 in parallel (will use 3 x 7805) .
4. kindly explain snubber circuit in simple words. have visited many sites ...but is quite complicated to understand.
5. Another portion for consideration,as you wold have noticed by now, I am using 5-6 voltage regulator ICs...so there is lot of head being generated even after placing the heat sinks.. Kindly suggest something for a cooler circuit.
Kindly guide me...
Thanx a lot for your kind concern...