 |
No items matching your keywords were found.
|
No items matching your keywords were found.
Rectifier Diode In4004
Bridge rectifier, transformer vibrates and gets hot?
I have a 120v-36v transformer hooked up to a bridge rectifier composed of 4x IN4004 diodes, 2 filter capacitors and a 100k resistor paralleling them as a bleeder resistor. The rectifier puts out the full 50v DC I expect it to, but at the same time the transformer faintly vibrates (you can only really tell if you touch it), and over time it gets quite hot. Why is this? I have checked over my connections quite a few times and I am 99.9% sure its all connected properly.
Well the transformer is quite old, it came from a 25 watt guitar amp from the 80s. When it was in the amp, it never got this hot or vibrated, and was (obviously) putting out at least 25 watts. Right now the only "load" on it is the 100k bleeder resistor, and it isnt even dissipating a single watt!
Since you are getting the correct voltage from the transformer+rectifier+filter, the most likely reason the transformer is heating is that it is has been designed with the least amount of wire that can possibly do the job, and thus the resistive losses are fairly high in the primary winding (the winding connected to 120 V). If you will be drawing a lot of power from the supply, you should ensure adequate ventilation for the transformer for cooling. Most transformers have a strap that can be mounted to a metal case to help dissipate some of the waste heat. If the excess heat is a problem, you might consider upgrading to a higher wattage transformer. Be sure to check the output voltage under load - it won't be nearly as high as when there is no load connected.
The vibration may be due to low quality lamination in the metal transformer core, or loose windings, or both. (The transformer core is made up of thin strips of iron that are insulated from each other, usually with a thin lacquer coating. Quality transformer cores will be very tightly laminated.) The vibration/noise is consistent with the apparent low quality of the transformer, but should not be a problem.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
 |
100 PCS 1N4004 IN4004 DO-41 Rectifier Diode 1A 400V |  |
 |
US $2.98 | 8d 11h 8m |
 |
120 PCS 1N4004 IN4004 DO-41 Rectifier Diode 1 Amp 400V | |
|
US $7.99 | 29d 1h 9m |
 |
110 PCS M4 1N4004 IN4004 DO-214 Rectifier Diode 1A 400V | |
|
US $8.99 | 29d 1h 20m |
 |
2200PCS M4 1N4004 IN4004 DO-214 Rectifier Diode 1A 400V | |
|
US $125.99 | 29d 1h 22m |
 |
3000 PCS 1N4004 IN4004 DO-41 Rectifier Diode 1 Amp 400V | |
|
US $139.99 | 29d 1h 12m |
 |
100 PCS 1N4004 IN4004 DO-41 Rectifier Diode 1 Amp 400V | |
|
US $4.86 | 2d 11h 38m |
 |
100 X 1N4004 Rectifier Diode (IN4004 1N 4004) 1N4004T | |
|
US $13.95 | 6d 14h 57m |
 |
50 PCS IN4004 1N4004 Rectifier Diode (manufacturer--diodes inc) | |
|
US $3.00 | 2d 23h 19m |
 |
100 PCS M4 1N4004 IN4004 DO-214 Rectifier Diode 1A 400V | |
|
US $6.49 | 2d 11h 36m |
 |
approx 2000 X 1N4004 Rectifier Diode (IN4004 1N 4004) 1N4004T | |
|
US $15.00 | 21h 18m |
| Powered by phpBay Pro |
|
|
Rectifier $26.59 Rectifier is in stock and ready to ship from TrendTimes.com. Our toy stores sell Rectifier for the best price of $19.83 and personal shoppers are standing by to assist you. |
|
|
RECTIFIER $19 available at cmsnl.com - parts for a better ride |
|
|
Sovtek 5AR4 Rectifier Tube $24.99 Sovtek 5AR4 Rectifier Tube |
|
|
Lucent Rectifier PBP1H30EAA NP1500 $572.55 Lucent Rectifier PBP1H30EAA NP1500 |
|
|
Sovtek 5Ar4 Rectifier Tube $12.99 Sovtek 5AR4 Rectifier Tube |
|
|
Ricks Motorsport Electrics Rectifier $70.99 OEM-style rectifier only |
|
|
DIODE $12 When these electrical items fail there is little choice but to renew - With this genuine Suzuki par.. |
|
|
Mercury Marine Rectifier Kit $97.99 Mercury Marine Rectifier Kit . O/B Rectifier Kit - 4/5Hp |
|
|
Ricks Motorsport Electrics Regulator/Rectifier $113.99 Rectifier/regulators are OEM-style |
|
|
Used Mesa Dual Rectifier $1199.99 In Store Used USED MESA DUAL RECTIFIER |
|
|
Valere 2000W 48VDC Rectifier V2000A11 $693.55 Valere 2000W 48VDC Rectifier V2000A11 |
|
|
Alcatel 110/120v to 48VDC Rectifier 9R284301 $347.5 Alcatel 110/120v to 48VDC Rectifier 9R284301 |
| Account limit of 2104 requests per hour exceeded. |
205 GTI Xu10j4rs tacho reading lag
Sorry, comments for this entry are closed at this time.