开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. Duncanampspsud
  2. Topics

Transformer primary voltage entry won't stay put on Mac version

 

I recently got a Macbook pro and downloaded the mac version of PSUD2. Only having a couple of issues I wanted to run by the group.
1. toolbar above the design area stays hidden until you move your cursor up to the top of the screen then it appears as long as you keep it there. Maybe this is just an Apple issue but wanted to check with you as well.

2. When I enter the transformer primary voltage of 120, it enters fine but when hitting the OK at the bottom of the block and reopen, it keeps changing back to the 240 volts. I've tried removing the program and reinstalling but still does the same thing every time.

Thanks!
 

Hi Allen,

Not sure about the toolbar issue, I cannot find a toolbar above the design area. Could you please let me know what version of MacOS you are using? You can find this by clicking on the Apple logo at the top left and selection About this Mac. It will give a name and a version number, ?Also can you let me know what build of PSUD you are using which can be found from Help -> About.

The transformer voltage is set at 240 in a calculator screen, it's not saved anywhere and it just defaults back to the programmed settings every time you access it. I can amend it so it leaves the existing values for when you go into the calculator again during your current session.

Regards,
Duncan
 

On Tue, Sep 14, 2021 at 02:03 PM, Allen wrote:
I enter the transformer primary voltage of 120
Windows PSUD2, I do not see a transformer primary voltage. Only secondary.

Win7 home premium, 64bit
PSU Designer II
Ver: 2.22 Build 76
WRITTEN BY Duncan Munro
Copyright ?1998-2020 Duncan Amplification
 

Hi, and thanks?for getting back to me so promptly!. On the issue with the transformer primary voltage flipping back to 240, when I run the app on my PC, there's no issue and it stays set to 120 when I reclick on the transformer but not so with the mac . The problem with the mac is after I set it to 120, and click ok, it immediately reverts back to 240 even without doing anything else. Maybe it doesn't matter on values produced by the program?

PSUD2 version 2.20 build 74
My mac OS version is Catalina version 10.15.7 from mid 2012

Thanks,
Allen

On Tue, Sep 14, 2021 at 2:41 PM Duncan Munro <duncan@...> wrote:
Hi Allen,

Not sure about the toolbar issue, I cannot find a toolbar above the design area. Could you please let me know what version of MacOS you are using? You can find this by clicking on the Apple logo at the top left and selection About this Mac. It will give a name and a version number, ?Also can you let me know what build of PSUD you are using which can be found from Help -> About.

The transformer voltage is set at 240 in a calculator screen, it's not saved anywhere and it just defaults back to the programmed settings every time you access it. I can amend it so it leaves the existing values for when you go into the calculator again during your current session.

Regards,
Duncan

 

Hi, and thanks?for getting back to me so promptly. Maybe toolbar is the wrong term. At the top of the the app it has File, Options and Help buttons along with the name PSUD2. This does not show itself unless I move my cursor all the way to the top of the screen and then it drops down in view but if I move the cursor down even a tiny bit, it retracts back up out of view. Again, maybe this is something to do with my macbook but it hasn't occurred with anything else.

On the issue with the transformer primary voltage flipping back to 240, when I run the app on my PC, there's no issue and it stays set to 120 when I reclick on the transformer but not so with the mac.
The problem with the mac is after I set it to 120, and click ok, it immediately reverts back to 240 even without doing anything else. Maybe it doesn't affect the ability of the program to calculate things?
?
?The version I'm using is PSUD2 version 2.20 build 74

My mac OS version is Catalina version 10.15.7 from mid 2012

Thanks,
Allen
?
 

[Paul]Windows PSUD2, I do not see a transformer?primary?voltage. Only secondary

Hi Paul,

There's a couple of built in calculators that allow you to work out the source voltage and impedance, one does rely on primary voltage but it's hidden away.

If you Edit the transformer, there are a couple of buttons with [...] written on them, the top one allows you to calculate the two parameters using a transformer offload voltage and regulation%. The lower one allows you to calculate the two parameters using line voltage, resistance etc. and it does rely on primary voltage to do the math.

It's the lower on that Allen is referring to, that's the one that is having behavioural problems on his Mac.

Regards,
Duncan
 

[Allen]? The version I'm using is PSUD2 version 2.20 build 74. My mac OS version is Catalina version 10.15.7 from mid 2012

Hi Allen,

That's where I'm going to have an issue with debugging. I bought a Macbook Pro in Dec '19 to do some dev work for PSUD on, however it uses the very latest Big Sur operating system. Unfortunately, I don't have any other Mac hardware, and I certainly don't have any setup or OS going back as far as 2012. All I can do is check the software against my current system and try and reproduce any issues on that.

The? issue with the menu options moving about is one example of what I cannot check as the latest OS puts the menu for the active window right at the top of the screen, so I cannot really help with that one.

The other issue with the 120V being wiped each time, I can reproduce this on the Mac (it doesn't do it on the PC). This is something I can reproduce so will have a look at that this evening.

Regards,
Duncan


Regards,
Duncan
 

Duncan,

Thanks for looking into the issue with the primary voltage flipping with the Mac. I'll use my PCs for now so not a problem. The menu bar hiding out is not a problem for me as all I have to do is drag the cursor up to the top and it's accessible.

Looking forward to the new version you're currently busy with.

Allen
 

I'm going through medical treatments for the next 30 days at a hospital and only have my Mac laptop with me to run PSUD2. Looking for help from anyone who can run my PS design on their PC so I can have an idea for a range of dropping resistor values I'll need to purchase for experimentation and dialing things in to reach my B+ voltages.
I've attached my .psu file for Mac which will have most of the values set but you will need to enter a few of the values for the transformer which I'll list here:

Primary voltage 120, primary measured winding dc resistance = 10 ohms
Secondary nominal voltage (one side) from manufacturer = 330 volts
Secondary measured off-load voltage = 340 volts
Secondary measured winding dc resistance (one side) = 100 ohms

Desired B+ voltage values at current taps: B1 245, B2 265, B3 280?
Resistor values entered at R1, R2 and R3 (2.8K) gave me correct B+ voltages for all three B+ when running the simulator on my PC but are way off when running through the Mac version.

Thanks everyone,
Allen


Marantz 7C.psu
Marantz 7C.psu

 

开云体育

What's the transform current capability and load?

If you have someone already doing this, please let the group know...
- Ian
On 9/21/2021 18:40, Allen wrote:

I'm going through medical treatments for the next 30 days at a hospital and only have my Mac laptop with me to run PSUD2. Looking for help from anyone who can run my PS design on their PC so I can have an idea for a range of dropping resistor values I'll need to purchase for experimentation and dialing things in to reach my B+ voltages.
I've attached my .psu file for Mac which will have most of the values set but you will need to enter a few of the values for the transformer which I'll list here:

Primary voltage 120, primary measured winding dc resistance = 10 ohms
Secondary nominal voltage (one side) from manufacturer = 330 volts
Secondary measured off-load voltage = 340 volts
Secondary measured winding dc resistance (one side) = 100 ohms

Desired B+ voltage values at current taps: B1 245, B2 265, B3 280?
Resistor values entered at R1, R2 and R3 (2.8K) gave me correct B+ voltages for all three B+ when running the simulator on my PC but are way off when running through the Mac version.

Thanks everyone,
Allen
 

transformer current capability for high voltage section is 60 mA.
Load is 13.2 mA
I am not aware of anyone else working on this.

I'm glad I had to go through the specs again as I was in error in the original post on a couple of values. Secondary nominal voltage (one side) from manufacturer = 300 volts, not 330 as I had posted in the original post.

Transformer current capability for high voltage section is 60 mA.
Load is 13.2 mA
Primary voltage 120, primary measured winding dc resistance = 10 ohms
Secondary nominal voltage (one side) from manufacturer = 300 volts (not 330 volts)
Secondary measured off-load voltage = 340 volts
Secondary measured winding dc resistance (one side) = 200 ohms, (not 100 ohms)

Sorry for the values with wrong numbers I posted. All should be good now.
Thanks
Allen
 

I've got a couple of weeks left in the hospital and was hoping someone could run the PS simulation so I can put in an order for various resistors to start experimenting with as soon as I get out.

The parameters I have are:

Transformer current rating for high voltage section is 60 mA.
B+ load is 13.2 mA
Primary voltage 120
Primary measured winding dc resistance = 10 ohms
Secondary nominal voltage (one side) from manufacturer = 300 volts?
Secondary measured off-load voltage = 340 volts
Secondary measured winding dc resistance (one side) = 200 ohms
Rectifier = 6CA4
RC filter sections = 5
C1, C2, C3, C4, C5 each = 47 uf
Needed B+ voltage values at final 3 filter sections: B1 245, B2 265, B3 280
Current draw for each current tap = 4.4 ma

Let me know if there are any parameters I failed to include to run the numbers. ?FYI, resistor value for R4 for B2 that seemed to work out in my previous attempts was 2k. Resistor value for R5 for B3 that worked was 5.1K.

Thanks for the help!
Allen
 
Edited

I think I botched writing up the B+ voltages as relating to B1 through B3.?

For clarity, 3rd from last filter section is 280V, 2nd from last is 265V, last section is 245V.

Allen
 

For transfos simulation, for resistance value in simulation, see attachement
73s
Dom

psu transfo.jpg

 

Hi Dom,

I'm good with that. My problem is I'm stuck with only my MacBook Pro here in the hospital and the Mac version of PSUD2 is not behaving and won't hold certain values for simulation so I don't think my values are accurate enough to start experimentation. Was hoping someone might run the numbers for the resistor values before I ?order a boat load of resistors for the trial runs.

Thanks, Allen
 

开云体育

Hey Allen,

It might be overdoing but you could always install Oracle’s “Virtual Box” software, download Windows (I think Windows will run for 30 days before asking for a reg key), load Windows on VirtualBox and then install the Windows’ version of PSUD2.

How much time on your hands do you have? ?

-Bob

On Oct 10, 2021, at 9:35 AM, Allen <alwbartee@...> wrote:

?Hi Dom,

I'm good with that. My problem is I'm stuck with only my MacBook Pro here in the hospital and the Mac version of PSUD2 is not behaving and won't hold certain values for simulation so I don't think my values are accurate enough to start experimentation. Was hoping someone might run the numbers for the resistor values before I ?order a boat load of resistors for the trial runs.

Thanks, Allen

 

Hi Allen,

When you say the Mac version isn't behaving or holding certain values, what is the issue and what are the values? I ask because the simulator has 100% identical code between Windows/Mac versions and it should not forget any values within a design.

If it's the user interface issue you reported earlier with the off load voltage calculator having a set of default values every time you go in (known issue from Mac UI), this should only affect things when you go in to select a new transformer - that's not something you would change repeatedly. And if you did, simple logic tells me that you would have to key in fresh values for the transformer anyway?

Regards,
Duncan
 
Edited

Hi Duncan,

It's the primary voltage of the transformer that flips back to a default of 240 immediately after entering my value of 120. Maybe this doesn't affect the outcome but I seem to remember the windows version giving values a few volts different at the final three filter sections.

Ian Eales ran the numbers for me and emailed the results to me so I'm good to go now.

Thanks!
Allen

1 - 18 of 18