SilentSwitcher - mains-free +/-15V and 6/5/3.3V power

[HearingAids]

@jan.didden is there any chance to get a new version that takes 15v input?

 

[jan.didden]

I don't think that will happen ...
Sorry.

Jan

 

[bohrok2610]

Unless he referred to my version. It can take 15V input.

 

[RogerGustavsson]

We will not see your version being offered?

 

[bohrok2610]

Not until the current component shortage eases.

 

[drone]

Jan mentioned elsewhere that a higher-output SilentSwitcher is in the horizon. The design has been ready for some time but unfortunately due to the global component shortage and price increases the manufacturing of these boards is not currently feasible.

There is also a new improved "SilentSwitcher". It has LT3045/LT3094 regulators for lower noise at +/-15V and a new low voltage converter (5V5/5V/3V3 output) which allows up to 15V input voltage. So even freshly charge 12V batteries can be used as power source. However the output current is about the same as in the original SilentSwitcher (200mA at +/-15V). The output connectors have been doubled for added flexibility. The default low voltage output is now 5.5V so it can directly be used as input for local LDOs such as LP5907. The board has the same mounting pattern as the original SilentSwitcher so it can be used in Jan's Autoranger.
View attachment 1026275

Noise of the +/-15V outputs is about as low as LT30xx datasheets predict. Here is the +15V noise with 100R||100uF load.

View attachment 1026276
Whether or not ultra-low noise power supply is needed depends on the application. Applications dealing with low-level signals such as phono preamps or LNAs will surely benefit from low noise supply.

There is a currently a limited quantity available of these boards primarily for Jan's Autoranger kits.

Martti

Hi, is tree any chance to order one of these?

Regards
Branko

 

[bohrok2610]

Sorry, I don't have any extra currently. Component shortage and price increases are biting hard.

 

[drone]

Sorry, I don't have any extra currently. Component shortage and price increases are biting hard.

Any chance you have a bare pcb?

thx

 

[bohrok2610]

Sorry, I do not sell bare boards. The board is not really suited for diy unless you have a reflow oven.

 

[drone]

Sorry, I do not sell bare boards. The board is not really suited for diy unless you have a reflow oven.

Thank you again. Sorry to hear so. Would have the opportunity to use then reflow Owen of a local fablab.
Do you have any hint for an other switching supply low noise for a Phono preamp +15v/-15V 50mA each?

best regards

 

[bohrok2610]

You have PM.

 

[dubai2000]

May I ask if there is any kind of timeframe when the switcher might be available gain?

 

[BRN]

Is the silentswitcher going to be available again?

 

[flaklapp]

Any update on availability?

 

[MarcelvdG]

Regarding Jan's original designs:

https://linearaudio.net/silentswitcher

"Update Jan 2023: There are no more SilentSwitchers available, and no plans for a new batch."

 

[flaklapp]

Yes, I understood Jan was not making any more, it appears bohrok2610 was having updated versions made.

Best,
Frank

 

[bohrok2610]

I have made some new versions but most of those have gone to Jan or to my own use. I don't have any extra and no plans for a new batch.

 

[noviygera]

I too wish there were more available for sale....

 

[noviygera]

Are there alternatives?

 

[Mark Johnson]

Why not design + build your own, using Jan Didden's Silent Switcher as a starting point?