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Home › Teardowns › Chargers › ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints

Floyd
3 yearsagoChargers
4 3

With the advance of GaN technology, high wattage chargers today are getting smaller and smaller. However, there are some chargers which showed us it is still possible to make chargers smaller without the use of GaN, with the Innergie 60C and Lenovo Thinkplus PA65 being two examples. Today we have another compact high wattage charger that we teased earlier that adopts conventional design, the ZMI zPower Turbo 65W USB-C PD charger.


I Design

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The ZMI 65W charger features a two-tone design with a glossy and matte finish.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Foldable prongs.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

A single USB-C output port.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Side view.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Specifications:Model: HA712

Input: 100~240V AC 50/60Hz 1.5A

Output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Compared to the Apple 30W PD charger. 65W vs. 30W here.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

From left to right: Apple 61W, Netease 65W, Huawei 65W, Xiaomi 65W, Lenovo 65W, Lenovo Thinkplus 65W, and ZMI zPower Turbo 65W.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Compared to the Apple 61W PD charger.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Hands-on.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Dimensions: 50*50*28mm (2.0*2.0*1.1in).

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

It weighs 95.7g/3.4oz.


II Test

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Using ChargerLAB Power-Z KT001 USB power tester, we know that it supports Apple 2.4A, DCP, QC 2.0, QC 3.0, AFC, and FCP protocols.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

It also supports USB PD 3.0 at 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the iPhone XS Max, we are getting 9.17V 2A 18.37W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the Samsung Galaxy S10+, we are getting 9.14V 1.62A 14.88W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the iPad Pro 11-inch, we are getting 15.24V 2.22A 33.87W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the Nintendo Switch (handheld mode), we are getting 15.15V 0.99A 15.05W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the Nintendo Switch (handheld mode), we are getting 15.15V 0.99A 15.05W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the Huawei MateBook 13, we are getting 19.98V 3.01A 60.28W, under PD protocol.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Charging the MacBook Pro Pro 13.3-inch, we are getting 19.99V 2.56A 51.28W, under PD protocol.


III Teardown

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Pry it open from the output panel, the PCBA is tightly attached to the case and cannot be removed directly. You can already tell it's a high quality charger at the glimpse of the inside, if you read a lot of our teardowns.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

We have to cut the outer casing open to take out the internal PCB board. It can be seen that the layout of the internal PCB board is very tight but organized, with white glue filled between the components. The input end is populated with X capacitors, inductors, time-delay fuses and other components, along with six electrolytic capacitors in two sizes.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Input delay fuse, 3.15A 250V.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

X capacitor, 0.47μF.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The six electrolytic capacitors are all from the AiSHi (one of China's largest electrolytic capacitor manufacturers).

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The four smaller electrolytic capacitors, 15μF 400V.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The two larger electrolytic capacitors, 22μF 400V, so the six in a total of 104μF.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

PWM chip power supply capacitor, 10μF 100V.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The USB-C port is soldered on a daughter board which is vertically soldered on the main control PCB. The left side PCB board is hollowed out with an extra insulation board (the insulation board is integrated with the outer casing); on the right side are two output filtered solid capacitors.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Two solid-state filter capacitors, 470μF 25V, and the transformer uses multiple insulated wires to ensure safety.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

A Weltrend WT6636F is used as the USB-C interface controller. It is a protocol chip (TID No. 1080018) certified by the USB-IF USB PD3.0 (PPS), we have seen it inside the 65W Lenovo Thinkplus "lipstick" charger.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

A Vanguard Semiconductor VS3618AE is used as the VBUS switch for USB-C output port.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Detailed specifications of the Vanguard Semiconductor VS3618AE.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Close-up of the USB-C port.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

A high quality transformer from HR (one of Delta's main suppliers) with PQ24 core.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

A large metal heat sink is used on the back of the PCB, with a plastic baffle and 3M tape for insulation. There is a hollowed-out design between the primary side and the secondary side.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Remove the metal heat sink, it can be seen that the heat-generation components on the PCB are covered with white glue for heat dissipation.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

The input side uses two rectifier bridges, which distribute heat to avoid excessive temperature rise.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Primary PWM controller chip with letter code ZC01 6CE0T. It is a custom made chip for ZMI, the information about it is yet to be revealed.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Primary side main control switch, an Infineon's superjunction CoolMOS, model IPL60R185C7, 600V withstand voltage.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab
ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Detailed specifications of the Infineon IPL60R185C7.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

An EL optical optocoupler positioned between the primary and secondary. Above are patch mounted Y capacitors.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Secondary synchronous rectification controller from MPS, model MP6908.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Detailed specifications of the MPS MP6908.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Secondary synchronous rectification MOS tube, Toshiba TPH4R10ANL.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

Detailed specifications of the Toshiba TPH4R10ANL.

ZMI zPower Turbo 65W PD Charger (HA712) In-Depth Teardown Review: Design within Constraints-Chargerlab

All the components.


IV Conclusion


Design within constraints. The ZMI zPower Turbo 65W USB-C PD charger showed us there is still room for optimization with a conventional charger design. Without GaN, power engineers need to use more components and relatively larger transformer and capacitors for the same performance. However, with a deep understanding of space, performance, and heat dissipation, engineers at ZMI present us a surprisingly balanced charger in term of size, performance, and affordability. Darn impressive.


Pros:

Compact and powerful.

High quality components (even includes an in-house chip).

Affordable.


Cons:

Availablity


Source: chongdiantou

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Comments (4)
Back
  • Dung

    Please bring back thermal test.

    3 yearsago
    • Floyd

      @Dung: Yes, sir.

      3 yearsago
  • Blggg

    Does it generate a lot of heat and does it dissipate the heat well?

    3 yearsago
    • Floyd

      @Blggg: No, it runs a little warm like most chargers, but doesn't get too hot.

      3 yearsago
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