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JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

Hello.


I bought EVAL-M1-IR2214 and received the delivery today.

I turned on the power after receiving the delivery, but it doesn't turn on.
This product looks defective..

If you look at picture 1, the AC input is working normally.

However, if you look at picture 2, the DC voltage should be 550~600VDC, but it is currently 0.354V.

I turned on the power as soon as I received the item.
However, it does not power on.

is there a way to solve this problem?

Please reply.

 

AC.jpg

DC.jpg

  

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1 Solution
JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

I exchanged this issue because of the defect in the product itself.

We can't solve it.
Thank you for your answer.

View solution in original post

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8 Replies
1211Shukla
Moderator
Moderator
Moderator
25 solutions authored 100 sign-ins 50 replies posted

Hi,

Can you check once across the dc bus capacitor, whether it is charging or not? also one red LED is there what is status of that?

1211Shukla_0-1673330875592.png

Regards,

Rishabh

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JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

Hi @1211Shukla 

 

Thank you for your reply.
Does the part you want me to check means check if the voltage goes into C27 and C28?

There is a red LED, but it doesn't light up.

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1211Shukla
Moderator
Moderator
Moderator
25 solutions authored 100 sign-ins 50 replies posted

yes, you may check across C27

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JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

c27.jpg

A voltage of C27 was measured.
It's 0V.

 

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1211Shukla
Moderator
Moderator
Moderator
25 solutions authored 100 sign-ins 50 replies posted

Hi,

To check diode rectifier, ensure R56 and R57 is connected in the board, remove L-1, L-2 shorting and measure a dc voltage between L-1 point and PGND. 

Regards,

Rishabh

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JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

power.jpg

I measured it as you requested.
Please check the picture.

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1211Shukla
Moderator
Moderator
Moderator
25 solutions authored 100 sign-ins 50 replies posted

Hi,

As you are not getting rectifier out dc voltage please check healthiness of diodes (forward voltage drop) with the help of a multimeter.

1211Shukla_1-1673873040245.png

you can access each diode with three ac input and two dc out terminals.

Regards,

Rishabh

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JasonLEE
Level 4
Level 4
First like received First solution authored 50 replies posted

I exchanged this issue because of the defect in the product itself.

We can't solve it.
Thank you for your answer.

0 Likes