453 Threads found on edaboard.com: Push Pull
You can use a push button to simulate the door sensor, use the one you have not wired up. You will need a pull up resistor, you can either use a external 10K pull up resistor or enable the internal pull up on Port B. Wiring the processor reset to port RB5 is not what the question meant, wiring the processor reset to RB5 (...)
Microcontrollers :: 03-26-2017 19:21 :: pjmelect :: Replies: 1 :: Views: 519
Wrong. I/O and MISO (SDO) is push-pull output. Can't be connected together to prevent contension.
Microcontrollers :: 02-22-2017 10:45 :: Easyrider83 :: Replies: 8 :: Views: 657
1. Enable clock for timer
2. Setup the timer as timebase for PWM
3. Enable clock for GPIO and AFIO
4. Set IO as AFIO output push-pull
5. Setup PWM
6. Enable timer
7. Switch on PWM pins
Not really simple, but it is STM32))
Microcontrollers :: 02-04-2017 11:40 :: Easyrider83 :: Replies: 3 :: Views: 477
To understand about saturation effects, we should know the core type and flux in regular operation.
A push-pull transformer without any clamping or snubber might drive the MOSFET into avalanche breakdown in regular operation. Inrush current during output capacitor charging will cause respectively higher avalanche energy which might be sufficient
Power Electronics :: 01-27-2017 14:48 :: FvM :: Replies: 20 :: Views: 1368
If i like to give output from controller to input for another one IC means..?
It really depends on the type of input and output. If the output is push-pull, then you
don't need a resistor to input in the next processor.
If it's open drain, you need a pull up.
Microcontrollers :: 01-13-2017 07:37 :: doraemon :: Replies: 5 :: Views: 535
currently im making an IGBT protection for voltage inverters - by turning off PWM signal in right moment. Now im making PCB and because its my first big project I have some questions:
1. I want to use TLC3702 comparator, they say that it has build in push-pull.. so i dont need any other resistor for it to work (besides current regulations ofc
Elementary Electronic Questions :: 01-03-2017 20:21 :: QubeZX :: Replies: 0 :: Views: 5
I opened this new thread because even though this thread is for Three Phase push-pull signals the method is different that is it uses PWM mode. In the other thread it used Half-Bridge mode. Also this is for Three phase Inverter. The other Three Phase thread was for Three Phase AC Induction Motor Drive.
I am using PIC18F46K22 with 8 MHz Crystal a
Microcontrollers :: 12-16-2016 18:17 :: Okada :: Replies: 1 :: Views: 792
You have not mentioned any topology is specific. By the way, the most common to find in commercial products is the push-pull for relatively low powers, and the full-bridge for above.
Power Electronics :: 12-10-2016 13:40 :: andre_teprom :: Replies: 2 :: Views: 688
So my question is that, can I connect these isolated push-pull converters in series?
It depends on how well these two outputs are isolated. At some point in the feedback regulation loop, there is a capacitative coupling.
Better to forget the individual regulations of the converters and make sure that the trans
Power Electronics :: 11-14-2016 03:05 :: c_mitra :: Replies: 5 :: Views: 533
There are many approaches to make bit storage based on loop.
For example, the circuit called "bus holder" that used in digital IO can hold a bit value. The circuit is a buffer with weak driver, with input and output connected. And strong driver with Hi-Z ability. To load data strong driver push or pull, to store data strong driver in Hi-Z.
ASIC Design Methodologies and Tools (Digital) :: 11-09-2016 14:57 :: _yes_ :: Replies: 3 :: Views: 564
I am gonna design a push-pull dc dc converter converting 48V to 330Vdc based on the Tahmid's blog as below.
My questions are:
1) Do I have to use isolation in the feedback, for example through opto-couplers, to isolate the higher voltage secondary side from the primary side? Or will the above cir
Analog Circuit Design :: 10-19-2016 06:56 :: usama14 :: Replies: 4 :: Views: 968
The LT1533 should work fine from a 12V input, but its 1A current limit means 5V won't provide enough power. There are certainly many other off the shelf SMPS transformers you could use instead of the one in the reference design.
But it's likely not necessary to use a specialty part like the LT1533. A push pull converter with proper snubbers, layou
Power Electronics :: 10-19-2016 03:36 :: mtwieg :: Replies: 19 :: Views: 1042
p.s. full bridge drive will work a lot better at this power level... rather than push pull... also gives you more effective Cu on the Tx
Yes indeed, but he is specifically wanting push pull, presumably because its low voltage and VERY high current at 3KW. That needs to be taken into account and presents some rather nasty (...)
Power Electronics :: 10-09-2016 07:34 :: Warpspeed :: Replies: 25 :: Views: 2093
I'm using ADXL375 accelerometer sensor connected to STM32F103 microcontroller.
I wanna enable the interrupt pin of sensor and connect it to one of input pins of microcontroller
in sensor datasheet it is said that interrupt pin is push pull active high.
now, the Question is that How should I configure the input pin of microcontroll
Microcontrollers :: 08-15-2016 15:06 :: zahra110 :: Replies: 1 :: Views: 388
BJT are fast if not driven into saturation. In addition MOSFET gate driver must provide low impedance push-pull operation, particularly fast gate discharge. That's impossible with your single transistor high side driver circuit. Just helpless.
Power Electronics :: 08-01-2016 14:59 :: FvM :: Replies: 9 :: Views: 896
1. That part is meant to be used in a push-pull configuration.
2. It's meant to be used in class AB or C, which means that small signal matching is not going to get you the optimal output power.
3. How did you choose your gate bias voltage?
4. Is this, by chance, for MRI applications?
Fortunately the MRFE6VP61K25H is a popular part with the HAM r
RF, Microwave, Antennas and Optics :: 08-01-2016 14:26 :: mtwieg :: Replies: 3 :: Views: 576
It appears you are not producing a sine wave but driving some kind of square wave to the MOSFETS. I assume you are using a center-tapped iron cored output transformer with some DC votage applied at the center and the MOSFETS go to the ends of the windings. If I'm right, you have three electrolytic capacitors across each sid
Power Electronics :: 07-03-2016 00:19 :: Mhd_majar :: Replies: 11 :: Views: 2037
Presume "push-pull" refers to transformer push-pull (half- or full-bridge is push-pull as well).
Usually leakage inductance spikes are absorbed by dissipative snubbers, e.g. RCD or diode + Z-diode combination. Use interleaved primary windings to make the leakage inductance between both (...)
Power Electronics :: 06-26-2016 09:32 :: FvM :: Replies: 5 :: Views: 921
Once again, there are 3 possible logic types are used:
2. open collector/open emitter
You have to use second one. You will use LAT register to latch zero value, then switching the TRIS register you will be able to change between two pin states:
1. Forced low by low side mosfet
2. Released tri-state pushed hi (...)
Microcontrollers :: 06-16-2016 17:07 :: Easyrider83 :: Replies: 7 :: Views: 625
Thank you for the reply.
During the test we tried to increase and decrease the bias voltage. since we decrease the voltage it comes back to the stable state. It seems it works in on mode by reducing the bias voltage.
Thank you ahsoopk,
Actually this board is the test board of the transistor. And I think they have already c
RF, Microwave, Antennas and Optics :: 06-10-2016 08:48 :: BMR :: Replies: 8 :: Views: 520
I want to design a push-pull power amplifier in AB class.
I tried to use the test circuit of the transistor in the datasheet to get some idea about designing. I'm using ADS and I draw the schematic of the test circuit.now I think I should run HB-simulation. But I couldn't manage to run that. but it couldn't be converged due to some errors
RF, Microwave, Antennas and Optics :: 06-08-2016 15:37 :: ZHazami :: Replies: 0 :: Views: 4
I wonder what's the purpose of L1 at all?
Another likely problem is overvoltage in transformer push-pull stage caused by leakage inductance. Will need snubbers or clamping circuit, in any case it results in poor efficiency.
Finally I'm not sure if you achieve sufficient H-bridge dead time with transistor logic circuit formed by Q2 to Q5. Coul
Power Electronics :: 05-30-2016 10:55 :: FvM :: Replies: 12 :: Views: 878
Hi, I am new to power electronics, this a push pull current fed converter.There is some part I do not understand, please help!!!!!
Let's consider there is no series resistance on inductors and capacitors. 1 of the switch is turning on and another one is turning off, both duty cycle is 50% and frequency of 100kHz.
Power Electronics :: 05-05-2016 08:03 :: fillherin :: Replies: 3 :: Views: 928
I doubt that many 50 Hz transformer inverter are linear in any regard. They are usually implemented as simple 50 Hz push-pull switch with square wave output
Power Electronics :: 05-05-2016 10:32 :: FvM :: Replies: 7 :: Views: 1180
Did you notice that the Supertex application note implements a push-pull driver which is necessary to drive an actual square wave to the piezo tranducer? Your circuit can only generate a single exponential discharge pulse. It may be appropriate for your application, but looks at least unusual compared to typical piezo applications. Did you consider
Analog Circuit Design :: 04-22-2016 07:02 :: FvM :: Replies: 11 :: Views: 1107
A common drain Mosfet is a source-follower. It has no voltage gain and is extremely difficult to bias because if you make it push-pull the N-channel needs a fairly high input voltage and the P-channel needs a fairly low input voltage.
A CD4007 or a CD4069 cannot be made to do what you want and if you use separate Mosfets it will be very difficult.
Analog Circuit Design :: 04-11-2016 00:50 :: Audioguru :: Replies: 13 :: Views: 1267
Dear forum reader,
A while ago I have posted and question about a 500Watt DCDC inverter and thanks for your reactions. A friend of mine had a module like this and we have tested it. Conclusion don't buy it ours blew up after 200watt. In the meantime I have simulated a similar design in multisi
Power Electronics :: 03-23-2016 04:38 :: wogoos :: Replies: 2 :: Views: 674
Yes, isolated DC/DC is comprised of switching stage (e.g. transformer push-pull or H-bridge), high-frequency transformer, rectifier and filter. Switcher can be either unregulated or regulated.
Power Electronics :: 03-09-2016 10:25 :: FvM :: Replies: 3 :: Views: 505
How do you estimate or calculate the peak output power that a 500 W transformer in a push pull inverter can supply.
Power Electronics :: 03-02-2016 22:53 :: Lion :: Replies: 6 :: Views: 623
Does a push pull converter need an output inductor??
This schematics have no output inductor...
What is the output delta I (ripple current ) when there is no output inductor??
Power Electronics :: 03-01-2016 23:11 :: neonwarrior :: Replies: 6 :: Views: 983
I am looking for a good quality transformer manufacturer in China. I need to manufacture dc-dc boost toroid (12V to 40V push pull) transformer for commercial use. My present manufacturer didn't satisfy me as there is lot of leakage inductance which is causing trouble.
Does anybody know any quality company in China as my production will be China
Power Electronics :: 02-28-2016 10:59 :: MAXPAYNE :: Replies: 5 :: Views: 553
How interleaving winding is done in toroidal push pull transformer ?
You could wind twined at least part of the coils which have the same length, although this way could lose some dielectric strength.
Power Electronics :: 02-21-2016 20:09 :: andre_teprom :: Replies: 14 :: Views: 888
A 3.3V PWM input is stepped up to 12V using a BJT. The BJT has a speed up capacitor of 50pF. The output from the BJT is fed to an inverted push-pull stage. (Inverted as in the P MOSFET is at the bottom and N at the top)
The problem is that soon after the BJT switches ON, it immediately switches OFF for a few n
Analog Circuit Design :: 02-08-2016 11:46 :: mrinalmani :: Replies: 5 :: Views: 774
How i generate push pull pwm by using CCP1 CCP2?
Here is my code :
***Pic16F73 using MikroC******
duty1 = 50; // initial value for current_duty_1
duty2 = 50;
TRISC = 0x00; // PORTC as output
PWM1_Init(50000); // Initialize PWM1
PWM2_Init(50000); // Initialize PWM2
Microcontrollers :: 01-29-2016 10:34 :: online79 :: Replies: 2 :: Views: 699
You need at least 3 transistors to make a push-pull amplifier, not just two transistors. The first transistor provides voltage gain and inverts so that negative feedback can be added.
You need to learn about transistors to design a simple audio amplifier. Here is a simple transistor amplifier that uses common American transistors, not your orienta
Hobby Circuits and Small Projects Problems :: 01-23-2016 04:07 :: Audioguru :: Replies: 2 :: Views: 396
Bit of a long shot with the amount of information I can give but just asking in case anyone else had had similar issues
I have a push-pull design that is taking 60V and stepping it up to 360V at 360KHz, Now my issue is when I power the board at start up the board makes a bit of a noise then runs fine. Ive tried playing around with th
Power Electronics :: 12-21-2015 16:49 :: bowman1710 :: Replies: 26 :: Views: 2278
all resumes on how do you detect masters collision? if you use a open collector schema, you can detect collision when you try to send a 1 (open drain an 1 from the pull up) and read a 0 ( the other master is sending the line to 0) if you use a direct push-pull, the collision itself could burn the output of any or both masters.
you can try (...)
Microcontrollers :: 12-18-2015 06:15 :: Kurenai_ryu :: Replies: 1 :: Views: 695
What is the kind of circuit that drives the opto, open-collector, push-pull, etc ...? By the way, you are right regarding to the path of the power, for some obscure reason I was mistaken in the analysis done earlier.
Just to check: Could you confirm if the Varistor is not getting hot ?
Power Electronics :: 12-13-2015 21:01 :: andre_teprom :: Replies: 15 :: Views: 1102
I am looking for a diode components, can I used this diode for my rectifier?
And for the capacitor, which capacitor type is best used for push-pull filter application? do you think an electrolytic is good to use?
Elementary Electronic Questions :: 12-09-2015 01:25 :: dann11 :: Replies: 3 :: Views: 637
There is no law saying that lower L(mag) pulse transformers suffer more droop than higher L(mag) pulse transformers.
It depends. In your example, all cases have the same driver impedance (10 ohm + push/pull output impedance), in this situation the lowest Lh will of course involve the highest droop. You shouldn't make a thing out of
Power Electronics :: 12-07-2015 07:28 :: FvM :: Replies: 8 :: Views: 791
It means that I should use mosfet push pull driver based on P and N channel transistors?
Could you see link
Elementary Electronic Questions :: 11-20-2015 07:04 :: wormux29 :: Replies: 8 :: Views: 533
That comparator does appear to have a push-pull output.
You need a new plan. ;-)
You can't connect the comparator common to the ground that you are disconnecting from the battery negative terminal.
If you want the battery to power the comparators then you need to connect pin 4 directly to the negative terminal of the battery.
Analog Circuit Design :: 10-21-2015 04:17 :: crutschow :: Replies: 2 :: Views: 652
At about the end of this page there is a linear that I have tested and works well for 40m HF band.
I have also made this little broadband linear in the past
I was wondering how can I make the first c
RF, Microwave, Antennas and Optics :: 09-29-2015 06:57 :: neazoi :: Replies: 4 :: Views: 878
I have tried to design a Class AB push-pull source follower. Attached the schematic and its transient analysis.
Input is 0-3V AC. The output waveform expected is 0-40V AC. But I am not getting the proper output waveform. and it is clipped at the lower end.
Please suggest me how can I improve the response of my circuit.
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 09-23-2015 21:44 :: predator89 :: Replies: 6 :: Views: 890
Hello Mr. Klaus,
Thanks for your reply.
My program is for LED blinking by push button..
Please tell me where the mistake in program ??
Microcontrollers :: 09-17-2015 07:44 :: KYP :: Replies: 14 :: Views: 1022
use complementary push pull output driver in comparator rather than open collector and lowest impedance match for lowest latency and overshoot.
Analog Circuit Design :: 08-03-2015 16:38 :: SunnySkyguy :: Replies: 2 :: Views: 641
Doesn't matter what micro controller we are speaking about. It is true. Output stage is always latched and can be readed. In case of short circuit output 1 will be readed as 0. Enabling pin to output means just hold one of two push-pull transistor opened. Also, pull-up and pull-down combination can be specified as a (...)
Microcontrollers :: 07-01-2015 11:37 :: Easyrider83 :: Replies: 5 :: Views: 523
First, open a browser and type "push pull wiki". You will have a list of push pull definitions.
You can choose push pull output and you get a better definition with images than we could
Same method with "open drain wiki". Open collector is the same with bipolar transistors. (...)
Microcontrollers :: 06-20-2015 08:44 :: doraemon :: Replies: 3 :: Views: 1110
An open drain is the drain of a Mosfet that has an external load. Then more than one Mosfet drain can be connected to a single load. If all Mosfets are turned off then one Mosfet can control the load.
A push-pull output has two transistors, one of them pushes low and the other one pulls high. If you connect two or more (...)
Elementary Electronic Questions :: 06-17-2015 14:12 :: Audioguru :: Replies: 1 :: Views: 1238
The reason for the 50% duty limitatation in a 3525 is because it was designed for push-pull or bridge stages. Two nonoverlapping outputs are required in those topologies.
The method that warpspeed recommends combines the two outputs to a single output. Is that what you want? Or do you want both outputs to go above 50%?
Power Electronics :: 06-15-2015 02:54 :: schmitt trigger :: Replies: 3 :: Views: 534