PMP11282: Single phase AC/DC converter / battery charger reference design

Ray Vincent Aranzaso

Part Number: PMP11282
Other Parts Discussed in Thread: TIDA-01494, , INA181, PMP20873, PMP22220

Hi,

Good Day. I suggest to them some of reference design for their query.

The link (https://www.ti.com/tool/PMP11282) is heir interest....even though it serves a fixed output voltage of 24V and has only 410W of power.

Another reference design TIDA-01494 provides 480W/24V output.

https://www.ti.com/tool/TIDA-01494

What changes would need to be made to them to increase the voltage output or increase the output power?

Best Regards,

Ray Vincent

over 2 years ago

0 Ray Vincent Aranzaso over 2 years ago

TI__Genius 13535 points

Hi,

Good Day. Is there any update on our customer's query. Thank you very much.

Best Regards,

Ray Vincent

0 Ray Vincent Aranzaso over 2 years ago in reply to Ray Vincent Aranzaso

TI__Genius 13535 points

Hi,

Good Day. My post is from 2 days ago yet there is no response. Thank you very much.

Best Regards,

Ray Vincent

0 Ray Vincent Aranzaso over 2 years ago in reply to Ray Vincent Aranzaso

TI__Genius 13535 points

Hi,

Good Day. My post is about 11 days ago yet I haven't receive any response from your team. Please help to check. Thank you very much.

Best Regards,

Ray Vincent

0 Sheng-yang Yu1 over 2 years ago

TI__Expert 3650 points

Ray Vincent,

Sorry for my very late reply. To modify PMP11282 or TIDA-01494 for battery charger application (Assuming required Vout,max/Vout,min >2) would need to redesign the power stage especially the ratio of transformer magnetizing inductance to series resonant inductor ratio and likely the transformer turns ratio.

Regards,

Sheng-Yang Yu

0 Ray Vincent Aranzaso over 2 years ago in reply to Sheng-yang Yu1

TI__Genius 13535 points

Hi Sheng-yang,

Good Day. Please see below the response of our customer to your reply. Thank you very much.

a) Are TIDA-01494 as well as PMP11282 designs amenable to constant current control on the output (for battery charging)? If so, what modifications are recommended?

b) Is INA181 (U12) in TIDA-01494 providing overcurrent protection only?

c) What modifications are recommended to TIDA-01494 to improve efficiency to 94% at low input line (100Vac)?

Best Regards,

Ray Vincent

0 Ray Vincent Aranzaso over 2 years ago in reply to Ray Vincent Aranzaso

TI__Genius 13535 points

Hi Sheng-yang,

Good Day. Is there any update on the latest query of the customer? Thank you very much.

Best Regards,

Ray Vincent

0 Ray Vincent Aranzaso over 2 years ago in reply to Ray Vincent Aranzaso

TI__Genius 13535 points

Hi Sheng-yang,

Good Day. Any response on the latest query of the customer? Thank you very much.

Best Regards,

Ray Vincent

0 Sheng-yang Yu1 over 2 years ago in reply to Ray Vincent Aranzaso

TI__Expert 3650 points

Hi,

See my answer below:

(a) PMP11282 isn't designed for variable output voltage application (ex: battery charging). TIDA-01494 has constant current control loop and allows 22V-28V output voltage range.

(b) My understanding is INA181 only amplify current sensing signal, itself doesn't provide overcurrent protection.

(c) Because input current is higher at 100Vac, PFC stage efficiency drops a lot. So you want to improve PFC stage efficiency. The efficiency difference you are talking about is greater than 3%. I do believe you will need to use either AC-switch bridgeless PFC like PMP22220 or TTPL bridgeless PFC like PMP20873.

Regards,

Sheng-Yang Yu

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PMP11282: Single phase AC/DC converter / battery charger reference design