Surge protection for electronic animal containment system
A surge protector for the transmitter of an electronic dog fence, which protector includes a direct connection to ground on one side of the antenna loop, with the signal being applied to the other side of the antenna loop.
1 . An electronic impulse circuit for a device having a power circuit having a line, neutral and ground, a transmitter having outputs to a loop antenna having two inputs,
the electronic impulse circuit comprising:
a) a power impulse protection circuit interconnecting power circuit line and neutral to power circuit ground;
b) a loop impulse protection circuit interconnecting one input of the loop antenna to said antenna ground together with;
c) a heavy ground interconnecting said power circuit ground and said loop antenna ground.
2 . The impulse circuit of claim 1 characterized in that the heavy ground is connected to an earthed ground.
3 . The impulse circuit of claim 1 characterized in that the impulse protection for the loop antenna is on a printed circuit board with a maximized trace width for such impulse protection.
4 . The impulse circuit of claim 1 characterized in that the heavy ground is for the one input of the loop antenna is on a printed circuit with a maximized trace width.
5 . The impulse circuit of claim 3 characterized in that the heavy ground is for the one input of the loop antenna is on a printed circuit with a maximized trace width.
6 . The impulse circuit of claim 3 characterized in that the heavy ground interconnection to one input of the loop antenna includes a 1-2 inch length of from 16-12 gauge wire.
7 . The impulse circuit of claim 6 characterized 16-12 gauge wire also forms part of the impulse protection circuit for one input of the loop antenna.
8 . The impulse circuit of claim 1 characterized in that the impulse protection circuit the one input of the loop antenna includes a gas tube bridging the one input of the loop antenna to the heavy ground.
9 . The impulse circuit of claim 8 characterized in that the impulse protection circuit of the output of the transmitter includes a resistance to the gas tube.
10 . The impulse circuit of claim 9 characterized in that the impulse protection circuit for the output of the transmitter includes the resistance.
11 . An electronic impulse circuit for a device having a power circuit having a line, neutral and ground, a transmitter having two output terminals and a loop antenna having two inputs,
the electronic impulse circuit comprising:
a) an impulse protection circuit interconnecting power circuit line and neutral to power circuit ground;
b) an impulse protection circuit interconnecting one output of the transmitter to power circuit ground;
c) an impulse protection circuit interconnecting one input of the loop antenna to power circuit ground together with;
d) a heavy ground interconnecting power circuit ground and one output of the transmitter and one input of the loop antenna.
12 . The impulse circuit of claim 11 characterized in that the heavy ground is connected to an earthed ground.
13 . The impulse circuit of claim 11 characterized in that the impulse protection for the loop antenna is on a printed circuit board with a maximized trace width for such impulse protection.
14 . The impulse circuit of claim 1 characterized in that the heavy ground for the one input of the loop antenna is on a printed circuit with a maximized trace width.
15 . The impulse circuit of claim 13 characterized in that the heavy ground for the one input of the loop antenna is on a printed circuit with a maximized trace width.
16 . The impulse circuit of claim 13 characterized in that the heavy ground interconnection to one input of the loop antenna includes a 1-2 inch length of from 18-10 gauge wire.
17 . The impulse circuit of claim 16 characterized 18-10 gauge wire also forms part of the impulse protection circuit for one input of the loop antenna.
18 . The impulse circuit of claim 11 characterized in that the impulse protection circuit the one input of the loop antenna includes a gas tube bridging the one input of the loop antenna to the heavy ground.
19 . The impulse circuit of claim 18 characterized in that the impulse protection circuit of the output of the transmitter includes a resistance to the gas tube.
20 . The impulse circuit of claim 19 characterized in that the impulse protection circuit for the output of the transmitter includes the resistance.