A recruitment contest to make an analogue voltage alarm

  • Status: Closed
  • Hadiah: $10
  • Penyertaan Diterima: 3
  • Pemenang: faris8888

Ringkasan Peraduan

Project Title: A recruitment project to make an analogue voltage alarm

Overview:
I am looking for freelancers to design and create an analogue voltage alarm. The alarm should have the following specifications:

Voltage Range:
- The desired voltage range for the alarm is 0-5V.

Functionality:
- The alarm should be able to warn of both voltage rise and drop.

Power Supply:
- The alarm will be powered by a battery.

Ideal Skills and Experience:
- Strong knowledge of analogue circuit design.
- Experience in creating voltage alarms.
- Proficiency in selecting appropriate components for battery-powered devices.
- Familiarity with voltage monitoring and detection systems.
- Ability to design a compact and efficient circuit that meets the specified voltage range and functionality requirements.
This is the alarm system for my patent
The problem:
I have a 50 watt amplifier that creates a parasitic oscillation that needs to be measured.
The oscillation can be measured on a Computer based spectrum analyzer.( Tru RTA ) .
The power output is 1.4 V and 0.8mv.
This is essentially a microphone level signal
Most analogue signals need a line level signal to work ( 1-3V 10-30ma)
I have fed through various preamps and can get the signal to 9v and 4ma which is still too low to drive analogue circuits.

I have decided to post this as a contest to find someone to work with.
The contest is to provide a circuit diagram for a circuit that will.

1/ Detect a small voltage change and activate an alarm.
2/ I do not want digital solutions.

When I have found someone to work with there will be various projects awarded with individual agreed upon budgets

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Maklum Balas Majikan

“all good. The hardest part of a project is to keep everything simple ”

Gambar Profil warddavi, New Zealand.

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