1. I am generating MCU PWM from its pins, 3 channel. Its powered by 5V
2. The end device to which I have to give PWM, needs 10V PWM.
3. I have 10V dc available in my system.

4. Can someone suggest some suitable device where I can boost the signal from 0-5V to 0-10V PWM
PWM freq is 100Hz-3000HZ

 

Apply your PWM out of your uC to a transistor base or Logic Level MOSFET Gate and drive your load. You make no mention of the PWM current requirement? Also keep in mind the PWM signal will be inverted.

Ron

 

Also see fig 9 http://tahmidmc.blogspot.com/2013/01/using-high-low-side-driver-ir2110-with.html.
Or MIC4427.
Max.

 

Yes Ron that's exactly what we do. 3V to the uC, 12V to a motor.

 

The nice advantage of using a Picmicro to generate the PWM is the option of using the output inverted.
Max.

 

Mcu (5V) --> npn stage (10V) --> pnp stage (10V).

Mcu (5V) --> npn stage (10V) --> p mosfet stage (10V).

 

1. I have give PWM to meanwell driver here: https://www.digikey.in/product-detail/en/mean-well-usa-inc/HLG-320H-C1050B/1866-2498-ND/7704056

2 .MCU power is entirely different than meanwell driver. So MCU gnd is different than meanwell V-.

3. need to level shift PWM of MCU 0-5V to required 0-10V for meanwell driver.

4. I have added a IXDN602 as a driver/level shifter.

5. Will the circuit work asintended?

 

That should work, very similar to the MIC4427 in post #3.
Max.

 

In our system although they are not shorted but DIM- of all three drivers will be shorted together at microelectronic ground. Please comment if this can cause issue.

Microcontroller ground and driver -V , are separate though

 

Without knowing the nature of the input, I am not sure if it will be a problem. but it looks as though all the GND's (post#7) are going to be common the way you show it, the only way to isolate is with an opto-isolator IC.
Max.

 

1. attached is circuit to drive three meanwell drivers independently. ( https://www.digikey.in/product-detail/en/mean-well-usa-inc/HLG-320H-C1050B/1866-2498-ND/7704056 )

2. MCU is 5V powered, but driver need 10V to control at DIM+ and DIm-, so I connected MIC4427, to do this.

3. One channel of MIC4427 is not used, so its grounded permanent.

4. Will the circuit work as intended or any other suggestion/improvement.

5. I have asked meanwell team: they said you can only give 10V not more than that , I asked for 10.8V, since this SMPS was available. Now have to conect some regulator.
For three independent driver operation from common ground of MCU, waiting for their reply.

 

1. I was reading here: https://electronics.stackexchange.com/questions/461049/meanwell-3-in-1-dimming



2. Although not sure if this is the case with my meanwell driver also(sent mail to meanwell for this), then yes can easily use this circuit:



3. Will use PWM of fixed 1000hz frequency , with variable duty cycle(0 to 100%) to control the intensity. I think PC817 can work? Or any other better performing optocoupler?
But datasheet of PC817 says tr=tf=18us(max value)

a) When at duty cycle of 1% with PWM freq=1Khz , Thigh = 10us & Tlow=990us , so here it will be issue, I am looking for high speed optocouplers.

b) with PWM freq=200Hz, with 1% duty cycle., Thigh=50us & Tlow=4950us , so this can work .

c) Going to 100Hz would be very near lower limit to meanwell range :100Hz-3000Hz

d) What should I do here, select high speed optocoupler or go to low free like 120Hz or so?