IR receiver

[mohammad_sa39]

hi

i need for a light weight 1channel circuit for these kind of perfect IR sensors

i know theay are a perfect chip receiver but the output is not good for start a motor from a FF indoor

thanks for any input

[slipstick]

What type of IR transmitter are you using ? What do you expect the output from the receiver to be ?

Steve

[mohammad_sa39]

these RXes are a complate thing and work with all kind of IR TXes such as your TV controller

dont forget Steve i said i want build a 1 channel so i dont need for a complicated circuit
the only praplem is that these sensors dont have a high power output and must be amplified with one or tow transistors and or...

[adamdb]

You should be able to find IR receivers similar in size to this that already have the amplifier and filter built in. Look for units intended for use in TVs and VCRs. They used to be a small silver box about 1.5cm per side, but the current units are much smaller in size.

Adam

[slipstick]

these RXes are a complate thing and work with all kind of IR TXes such as your TV controller

dont forget Steve i said i want build a 1 channel so i dont need for a complicated circuit
the only praplem is that these sensors dont have a high power output and must be amplified with one or tow transistors and or...
Sorry but I've used lots of those sensors and your idea of what they do is wrong. The output of the sensors mirrors the amplitude of the transmitted signal wth the carrier (usually 38KHz) removed.

If you want the output to switch ON and then later OFF you either need a transmitter that produces exactly that signal i.e. switched carrier or some way to decode and latch the transmitted signal. TV remotes produce a complex encoded signal nothing like a simple switch.

If you want a single channel proportional output you need some way of encoding the proportional value onto the transmission and then decoding it at the RX, something like a single channel PPM scheme.

None of these are very difficult to do but you have to decide what you are trying to achieve.

Steve

[mohammad_sa39]

hi Steve

thanks for your attention my friend

i am not an electronic engineer such as you but have had some of experiments with these IR (my mean is the first from the left at above the pic)
that's normally a ir sensore used inside of TV receivers

i could get a cool reply from a IR TX that used a flip flap circuit(2 transistors and 2 or 3 capacitors and 2 resistors)
i could get the reply from a TV remote control and these IR sensors
now that you said me the above reply i connect one of these IR receivers sensors to 3V and a connect the output to a voltmeter,i connect a IR diode to 3v with no circuit and the ohmeter showed me the revelations but with no cool results because i didnt use from an ocilator for IR diode but i think it must works with else amplitudes

perhaps i am wrong anyway this was my experience. you are a engineer

best regards

[slipstick]

You still haven't said what you're actually trying to do with this sensor but good luck with your experiments.

Steve

[mohammad_sa39]

for motor switch(ON and OFF)