Ok the module is this.
https://www.epal.pk/product/rcwl-0516-microwave-radar-human-inductive-motion-sensor/
Now i want to power it with 4 AA batteries that makes 1.5*4=6 Volt
here are some specs when it detects motion.
It outputs 3.2-3.4V when motion detected at one of its pins.
Output 100mA current is max output.
now what i want is to take that output and feed it to a very simple 1 transistor circuit that is powered by the same 6 volt batteries set that can give me 6 volts with more amps and Should be as simple as possible to achieve simplicity and less space.
Thats all.

 

hi Met,
How many more amps are required and what is the load.?
Eric

 

Ok so sorry not to mention that, well the load is a simple high decibel buzzer 6 vdc 100mA
like this one
https://www.evselectro.com/speakers-and-buzzers/6-24vdc-buzzer-hq-3723

 

hi,
A single transistor or low power MOSFET would do the job.
What do you have in your bench work stock of semiconductors.?
E

 

I have a bunch of C828 NPN transistors.

I want it to create high decibel sound

What if i need to power a larger buzzer with more dB sound like 130db and 2 watt specification.

 

hi,
The C828 has a 100mA max peak collector current limit, continuous at 50mA.
Which sounder do you have.?
E

 

What if i need to power a larger buzzer with more dB sound like 130db and 2 watt specification.

I would choose a MOSFET with a low Vgate voltage, to suit the 3V output.
E

 

Ok dear what i am trying to create is a product that can be used as a burglar alarm with high decibel sound so please guide me for getting a good buzzer for this purpose and feed it through some circuit....

 

hi,
I use a 12Vdc Siren sounder, you can hear two blocks away.
E
Look here;
https://www.google.com/search?q=12v+siren+sounders&ie=utf-8&oe=utf-8&client=firefox-b

BTW:
The sound 'bomb' type are usually for indoor use.


Update:
https://www.ebay.co.uk/itm/12V-12-V...RN-SIREN-SOUNDER-SECURITY-ALARM-/321493384327

 

Ok Good now design me a circuit that can drive this i can upgrade the 6 volt supply to 12 volt and a good battery.

 

hi,
The uWave sensor can operate from 12V, so can the siren.
All you need is a MOSFET, rated at say Id=1Amp and Vgs of < 2V. say a SI2300.
A 1k resistor from uWave out to the MOSFET Gate.

Sketch out and post a circuit, we can check
Add power line decoupling, say a 47ouF and 100nF caps
E

 

Sir please help me i need a 6 volt design for this system with a 6 volt buzzer with 130 db sound and 200mA specs.

 

hi,
The sensor will work from a 6V supply, so find a 6V buzzer with a 130dB output and use the same MOSFET type I posted.
E

 

Ok dear what i am trying to create is a product that can be used as a burglar alarm with high decibel sound so please guide me for getting a good buzzer for this purpose and feed it through some circuit....

As an additional info, notice that these uw modules may even detect motions behind the walls,and are sensitive to any kind of motions unlike the PIR sensors that are mostly snesitive to movement of thermal-emiting objects (like human or animal's body).

 

I need to create a simple PIR alarm as above but instead of a buzzer i want to use this https://www.alibaba.com/product-det...m=a2700.7724857.normalList.175.62396044LehupM
The website has mentioned these specs for it.
DC12V/24V
Rated current 3A/2A
please some one guide me for a suitable but a one transistor solution to this problem. the operating voltage will be a 12v bike battery instead of a 9v as circuit shows above.
Or
If some one has a better option to use instead of the siren i posted in the link please share that.
Thank you.

 

hi Met,
The solution in post #11 is still suitable, ensure the MOSFET can handle 3Amps.
E

 

hi Met,
The solution in post #11 is still suitable, ensure the MOSFET can handle 3Amps.
E

Well thats a good option but i can't find Si2300ds easily please specify another MOSFET which will be easily avialble.

 

hi Met,
If you give an idea on what types are available in your area, we could select one or two.
E

 

How about an FDS8896

Les.

 

But the problem is that i want to do it only using BJTs, please no MOSFETs since i can't find them or i am not comfortable with them.