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Yes. Very reasonable feedback. Thats what I wanted to figure out. PPL has significant contribution on phase error. DSP sampling techniques can identify it properly. I found only things for single phase, the equations I posted somehow it comes from any good journal.
If you take a look on the equation dont you imagine, A,B.C phase with 3 dimension converted to d,q vector field.
Take a look this for single phase ,
Can you understand which part has reactive element and angular function. d, q both depends on theta.
Yes, my control system also has zero-cross...
Yes well said. It has the 6 switch bridge , I think my system has leading PFC, because it does not have resistive load ( just when I test it with R), lets think battery works like a capacitor. Look at the datasheet of HF IGBT from infenon. I am using 6 pulses but with a different fashion...
In order to achieve unity power factor control, the phase of the AC voltage needs to be obtained. The phase is obtained through a phase-locked loop (PLL).
Take a look for single phase control structure of the PLL ,
For such similar way I want to mention some of 3-phase equations...
Purpose is updated Firmware works or not or does it fits with H/W.
Not for a long time, didn't you see on off switch/ interrupt switch?
KRA105S and KRC105S are suitable couple. You didn't view full picture, there is nothing can kill E or C.
What level of current do you expect ? does this...
I am working with a MCU STM32F405VET for any particular purpose. Lets say at this time firmware code has burn on MCU. Lets talk about HW issue.
Take a look the datasheet here https://www.qdatasheet.com/datasheet-download/190671/1/ST-Microelectronics/STM32F405VET6
In my design...
My project diagram is similar to this idea,
Lets say input is 3p 380VAC, 60Hz, Main Transformer MTR runs at 20kHz, DC output should be 50-147 v, charging current 100A. Should have CC and CV mode of operation.
I need to implement FW with following facilities,
1. Shunt/ Temperature...
Dear Sir Audioguru,
Well come back!
Hope in this pandemic you were safe and healthy.
I think It should work.
Calculation says charging time will be less compared to predicted one.
"State of charge " and how quickly it will discharge is a fact.
I got a good result with 4.7 volt Lithium...
One of the promissing and knowledged based reply for sure.
You started from PS design, at the beginning all rectifier section contains ripple or pulsating DC might appear, depending on charger/PS design. Since I have a complete product then transformer or AC components should not get priority...
I got your point but not much clear view on it. You want me to use some current limiting techniques. Take a look this idea
Yes, it is easy to see how fast this battery can discharge. If you add 18 ohm in the emmiter path then the battery will get 100 mA. In put voltage should be 6.5~10 Vdc. I...
In previous comment I understand why you want me to apply charging current 130mA because 10% of capacity represents charging current.
Now beside high and low impedance batteries or internal resistance power consumption s I got a idea.
I had another charger for Sayno 1400 twicell...
I have 3 chargers , let me know which one is best. Some has lost their stability.
1. 9 v /800mA ( witten as 6v/300mA
2. 10 v/ 880mA( written as 7.5V/300mA)
3. 12 v/900mA.
For whole battery pack those are not suitable you said.
Thank you for such comments l.
Yes, reverse polarity might kill others. Did you see my posted circuit , its not used for peak voltage detector? If I just charge single one then do you have any circuit in your mind using LM358 or LM317?
I got a part of vacuam cleaner machine driven by DC charger. May be it was manufactured in 2018.
User might through it away because it was troubling.
9 pcs of P-130SCS 1.2V 1300mAh has joined togeter to get 1.2×9 Vdc...
Question arises if both node remains constant on polarity then why 4 igbts are used? One leg of primary TR connected with a pair of IGBT doesn't tell us that its polarity could interchange? Don't you mean the circuit is not wrong?