Pulse Transformer

Diouffy's picture

Offline

Joined: May 02, 2020

Replies: 10
Pulse Transformer
May 21, 2020 - 12:34am

I wanna make pulse transformer for my stun gun but I am just having pieces of wires, maybe 3 in peces, is it possible to solder the wires together to make enough 1200 turns?

jaksonlee's picture

Offline

Joined: Nov 07, 2019

Replies: 122
A pulse transformer is an
May 21, 2020 - 4:51pm

A pulse transformer is an enhanced transformer that produces electrical pulses of great velocity and constant amplitude. They are often used in the transmitting of digital information and in transistors.

A good transformer should have galvanic isolation and distributed capacitance. Low coupling capacitance is also crucial to protect the circuit.
Signal kinds of pulse transformers gear towards complementing logic drives to transmission lines. These operate with smaller power thresholds. Many such transformers serve as wideband transformers. For digital data transmission kinds of transformers, they are optimized to reduce signal distortions.
Frequency range and signal conformity are determined by external factors like inter-winding capacitance, the individual capacitance of each winding and even resistance. Negative effects of these externalities result in overshoot, droop, back swing as well as deterred rise and fall time. In lieu of these considerations, pulse transformers are designed according to power grades, inductance, voltage ratings, operating frequency, size, resistance, frequency range, winding capacitance.

Sourav Gupta's picture

Offline

Joined: Feb 12, 2018

Replies: 282
Yes you can make it. But make
May 22, 2020 - 7:39pm

Yes you can make it. But make sure that the soldering should be done on the transformer pin rather than in between of the transformer windings. Select a Boboin that has few extra pins where you can solder the wires.

Diouffy's picture

Offline

Joined: May 02, 2020

Replies: 10
Transformer joint windings
May 25, 2020 - 8:45pm

Thank you for yours direct straightforward soluition, you are helpful indeed

Harry Chester's picture

Offline

Joined: Oct 14, 2019

Replies: 3
Pulse transformer windings
May 26, 2020 - 9:40am

Does anybody have instructions/information on winding the transformer for this stun gun circuit. 

Where to get the bobbin, the ones on Digikey look a bit to fancy for the job?

I am assuming that for the turns ratios that 50 turns is the output, four turns goes to the base of  Q1 and the one turn to emmiter of Q1, as per the Article statement "Transformer turn ratio for feedback coil, primary coil and secondary coil will be around 1:4:50"

Also has any one an idea of the wire gauge for the 50 turns and the one and four turns.

"Diouffy, 1200 turns appears to be making a real stun gun, I only want it as a mouse and rat killer.

 

Sourav Gupta's picture

Offline

Joined: Feb 12, 2018

Replies: 282
Calculate the inductance.
June 26, 2020 - 3:01pm

The size of the transformer and the core bobbin spec is directly concerned with the inductance of the transformer. Thus calculation of inductance required is the first thing you should do.

However, it will be very small in size and wire gauge will be very less. Since it will not produce high current but high voltage the wire will be very small in diameter.

jaksonlee's picture

Offline

Joined: Nov 07, 2019

Replies: 122
A pulse transformer is an
June 26, 2020 - 2:52pm

A pulse transformer is an enhanced transformer that produces electrical pulses of great velocity and constant amplitude. They are often used in the transmitting of digital information and in transistors (particularly with gate drive circuits).

Olivia Williams's picture

Offline

Joined: Feb 27, 2020

Replies: 15
A pulse transformer is an
September 28, 2020 - 1:55pm

A pulse transformer is an enhanced transformer that produces electrical pulses of great velocity and constant amplitude. They are often used in the transmitting of digital information and in transistors.

A good transformer should have galvanic isolation and distributed capacitance. Low coupling capacitance is also crucial to protect the circuit.Signal kinds of pulse transformers gear towards complementing logic drives to transmission lines. These operate with smaller power thresholds. Many such transformers serve as wideband transformers. For digital data transmission kinds of transformers, they are optimized to reduce signal distortions.Frequency range and signal conformity are determined by external factors like inter-winding capacitance, the individual capacitance of each winding and even resistance. Negative effects of these externalities result in overshoot, droop, back swing as well as deterred rise and fall time. In lieu of these considerations, pulse transformers are designed according to power grades, inductance, voltage ratings, operating frequency, size, resistance, frequency range, winding capacitance.