Power supply 230Vac 12V - 24Vdc

Started by Gerard March 19, 2013
Hello to all.
 I am searching for a multivoltage power supply which are to be mounted on the DIN
rail of a cabinet.
What I am actually interested in are 12Vdc and 24Vdc  outputs with an input of
230Vac. The loads I am considering 
in my circuit draw about 1 Amp from the 12Vdc source and about  3Amps from the 24Vdc
source.
As I am designing a redundant power supply I would need to have 2 Power supplies in
parallel so in case one fails 
the other takes over so I would also like to know whether the power supplies have an
incorporated diode that idealizes this  function.
I am also considering using one of the 12Vdc power supplies  with a dual output for
this function.  By connecting the both 12V
 outputs in a series connection I would have my 24Vdc and at the 12V nodes i could
power my 12V load. 
Another option would be to get the 24Vdc power supply and using a resistive bridge
or zener diode lower the voltage to 12Vdc or another integrated 
circuit ...however I would have to cope with heating losses and  high wattage extra
components.
Could you please advice me on my best options. 
I am familiar with TDK Lambda power supplies for DIN Rails. As this is circuit has
to always work I would need a reliable and top notch manufacturer.
Thanks in advance.
Gerard
On Tue, 19 Mar 2013 10:01:30 -0700 (PDT), Gerard
 wrote:

>Hello to all. > I am searching for a multivoltage power supply which are to be mounted on the DIN rail of a cabinet. >What I am actually interested in are 12Vdc and 24Vdc outputs with an input of 230Vac. The loads I am considering >in my circuit draw about 1 Amp from the 12Vdc source and about 3Amps from the 24Vdc source. >As I am designing a redundant power supply I would need to have 2 Power supplies in parallel so in case one fails >the other takes over so I would also like to know whether the power supplies have an incorporated diode that idealizes this function. >I am also considering using one of the 12Vdc power supplies with a dual output for this function. By connecting the both 12V > outputs in a series connection I would have my 24Vdc and at the 12V nodes i could power my 12V load. >Another option would be to get the 24Vdc power supply and using a resistive bridge or zener diode lower the voltage to 12Vdc or another integrated >circuit ...however I would have to cope with heating losses and high wattage extra components. >Could you please advice me on my best options. >I am familiar with TDK Lambda power supplies for DIN Rails. As this is circuit has to always work I would need a reliable and top notch manufacturer. >Thanks in advance. >Gerard
Meanwell has some DIN rail supplies. If it really has to always work, you'll need to find another approach (for example hot swap and redundancy) than just buying good or expensive supplies because _everything_ eventually fails, and power supplies will often fail before other things.
On Tue, 19 Mar 2013 10:01:30 -0700 (PDT), Gerard
 wrote:

>Hello to all. > I am searching for a multivoltage power supply which are to be mounted on the DIN rail of a cabinet. >What I am actually interested in are 12Vdc and 24Vdc outputs with an input of 230Vac. The loads I am considering >in my circuit draw about 1 Amp from the 12Vdc source and about 3Amps from the 24Vdc source. >As I am designing a redundant power supply I would need to have 2 Power supplies in parallel so in case one fails >the other takes over so I would also like to know whether the power supplies have an incorporated diode that idealizes this function. >I am also considering using one of the 12Vdc power supplies with a dual output for this function. By connecting the both 12V > outputs in a series connection I would have my 24Vdc and at the 12V nodes i could power my 12V load. >Another option would be to get the 24Vdc power supply and using a resistive bridge or zener diode lower the voltage to 12Vdc or another integrated >circuit ...however I would have to cope with heating losses and high wattage extra components. >Could you please advice me on my best options. >I am familiar with TDK Lambda power supplies for DIN Rails. As this is circuit has to always work I would need a reliable and top notch manufacturer. >Thanks in advance. >Gerard
Meanwell has some DIN rail supplies. If it really has to always work, you'll need to find another approach (for example hot swap and redundancy) than just buying good or expensive supplies because _everything_ eventually fails, and power supplies will often fail before other things.
Hello to all.
 I am searching for a multivoltage power supply which are to be mounted on the DIN
rail of a cabinet.
What I am actually interested in are 12Vdc and 24Vdc  outputs with an input of
230Vac. The loads I am considering 
in my circuit draw about 1 Amp from the 12Vdc source and about  3Amps from the 24Vdc
source.
As I am designing a redundant power supply I would need to have 2 Power supplies in
parallel so in case one fails 
the other takes over so I would also like to know whether the power supplies have an
incorporated diode that idealizes this  function.
I am also considering using one of the 12Vdc power supplies  with a dual output for
this function.  By connecting the both 12V
 outputs in a series connection I would have my 24Vdc and at the 12V nodes i could
power my 12V load. 
Another option would be to get the 24Vdc power supply and using a resistive bridge
or zener diode lower the voltage to 12Vdc or another integrated 
circuit ...however I would have to cope with heating losses and  high wattage extra
components.
Could you please advice me on my best options. 
I am familiar with TDK Lambda power supplies for DIN Rails. As this is circuit has
to always work I would need a reliable and top notch manufacturer.
Thanks in advance.
Gerard