Re: IR Motion Sensor Question

Bill -

Assuming the secondary of the transformer is connected to a resistive load, then I don't think the primary will look inductive. A good power transformer simply reflects the secondary load back to the primary, modified by the turns ratio. There is leakage inductance, of course, but it presents a tiny load, especially compared to the floodlight in parallel with it.

You should be good to go.

Bill Jeffrey
=============================

Bill Sheppard wrote:

Hi
I'm building a security system for my apt. building, and
will be using those IR motion sensors that turn on floodlights. Is it OK
to connect an inductive load (a transformer) in parallel with the
floodlight? Thanks
Bill 

Header address is a spam trap. E-mail: oldcoot88atwebtv.net  Change 'at'
to @


.

Relevant Pages

  • Re: [opensuse] [OT] How much power does a PC really consume?
    ... the type of load, it's almost 99% resistive. ... A transformer literally does what its name implies--it transforms a given ... voltage and current into another voltage and current, ... limit current and that inductance will cause the current phase shift. ...
    (SuSE)
  • Re: Cartridge loading - does it matter?
    ... capacitance on the grid should be in the order of 3-4pf, ... Hence unless the coil inductance was very small, ... using a transformer or an amp with a low input impedance. ... introducing source and load dependent variations in response. ...
    (uk.rec.audio)
  • Re: Breaker panel current transformer?
    ... dangerous voltages on the output of a current transformer is a short circuit on the load being monitored. ... high the output voltage will still be limited by the voltage drop ... If the load is a short, you *will* have full voltage across the primary. ... including its secondary resistance, and its leakage inductance. ...
    (sci.electronics.design)
  • Re: Power Supply Rectification and Smoothing
    ... turning the mains off and then on quickly with the transformer core ... transformer to provide a slightly higher voltage say 32V or so. ... sudden load changes. ... I think they only offer 4 different caps. ...
    (sci.electronics.basics)
  • Re: Transformer drawing 1 amp
    ... When there is no secondary load, the inductance of th ... precipitously, twice a cycle, if the core flux reaches ... This occurs if you apply excessive voltage to ... The transformer limits current to the secondary by the ...
    (sci.electronics.basics)