Hi,
I am working on a project at home, a Hot Wire Foam Cutter! It calls for a power supply and a schematic is given from hobbycnc.com. The power supply is going to supply 24volts and about 4-8amps to a circuit card. This circuit card in turn will give electricity to a wire which will be used to cut foam.
**broken link removed**
It's the BOW POWER CIRCUIT.pdf
I purchased:
one 24 V.C.T. @ 5 AMP POWER TRANSFORMER (Model TX-245 from
allelectronics.com).
one 35 AMP 600 PIV
BRIDGE RECTIFIER (Model FWB-356 from allelectronics.com)
one Capacitor 40V 10000uF (Mouser P/N 75-36DE103G040AM2A from Mouser.com).
Bleed Resistors set up as 3pcs 5.6K 1/2W in parallel.
I hooked it all up and nothing blew up, but when I checked the voltage (at TB7) and I get 37.5 Volts.
Can you explain to me what is happening and what is going on?
I am working on a project at home, a Hot Wire Foam Cutter! It calls for a power supply and a schematic is given from hobbycnc.com. The power supply is going to supply 24volts and about 4-8amps to a circuit card. This circuit card in turn will give electricity to a wire which will be used to cut foam.
**broken link removed**
It's the BOW POWER CIRCUIT.pdf
I purchased:
one 24 V.C.T. @ 5 AMP POWER TRANSFORMER (Model TX-245 from
allelectronics.com).
one 35 AMP 600 PIV
BRIDGE RECTIFIER (Model FWB-356 from allelectronics.com)
one Capacitor 40V 10000uF (Mouser P/N 75-36DE103G040AM2A from Mouser.com).
Bleed Resistors set up as 3pcs 5.6K 1/2W in parallel.
I hooked it all up and nothing blew up, but when I checked the voltage (at TB7) and I get 37.5 Volts.
Can you explain to me what is happening and what is going on?