relay recommands

[jetfire]

Hi,

i plan to buy   relay for controlling mit labview   two dc Power  supply output on/off,one DC Power Supply （HP E3631A）enable one chanel output 3.5 V,and relay set output on/off,another DC Power Supply （HP E3631A) enable three chanels 1v,+18V,－18V,relay set them on/off.

 i am  really new to  relay switch, i have writed Email to NI service,und waiting for answer,if anyone recommands relay to complete this Switching function that would be appreciated.

[K C]

Hi,

Why do you want to switch a power supply output with a relay ?  You can interface with the power supply (GPIB) and switch the output on and off.

Kees

[jetfire]

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@K C wrote:

Hi,

Why do you want to switch a power supply output with a relay ?  You can interface with the power supply (GPIB) and switch the output on and off.

Kees

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because i want to deterministic timing controll for  switching between two power supply output,interface with the power supply (GPIB) have kommucationsoverhead 

[K C]

Hi,

In that case I would use a solid state relay. No contact bounce and better timing.

I think you are from Germany. Look a 'Schuricht' for 'solid state relay'.

Kees

[jetfire]

thanks for your recommands, can this Schuricht  solid state relay kontroll  direct mit labview ？ i need to a relay that can talk to labview.

[K C]

Hi,

No, you need a (low) voltage source to drive the Solid State relay. Maybe a cheap digital output module can do this depending on the type a soldis state relay you need and choose.

Take a look at the datasheet of a solid state relay.

Kees

[jetfire]

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@K C wrote:

Hi,

No, you need a (low) voltage source to drive the Solid State relay. Maybe a cheap digital output module can do this depending on the type a soldis state relay you need and choose.

Take a look at the datasheet of a solid state relay.

Kees

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where can i choose cheap digital output module？

[K C]

At NI or cheaper an Arduino UNO

[Dennis_Knutson]

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@jetfire wrote:

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@K C wrote:

Hi,

Why do you want to switch a power supply output with a relay ?  You can interface with the power supply (GPIB) and switch the output on and off.

Kees

---

because i want to deterministic timing controll for  switching between two power supply output,interface with the power supply (GPIB) have kommucationsoverhead 

---

You have overhead with communicating to a relay as well. You didn't even try software triggering both of the supplies at once, did you?

[jetfire]

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@Dennis_Knutson wrote:

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@jetfire wrote:

---

@K C wrote:

Hi,

Why do you want to switch a power supply output with a relay ?  You can interface with the power supply (GPIB) and switch the output on and off.

Kees

---

because i want to deterministic timing controll for  switching between two power supply output,interface with the power supply (GPIB) have kommucationsoverhead 

---

You have overhead with communicating to a relay as well. You didn't even try software triggering both of the supplies at once, did you?

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Hallo, i have read about im attachment Triggered example,but i do not understand,how to use software triggering  both of the supplies at once,i have little experience about it