PREMO Extends The Transformer Series with FLYT-004 and FLYT-005, Quasi-resonant Mode Flybacks Specifically Designed for Onboard Chargers

2023-04-08 PREMO News

Flyback transformers are the most popular choice for cost-effective, high-efficiency isolated power converters from one to tens of Watts of power size. The new FLYT-004 and FLYT-005 transformers are suitable for onboard EV/PHV AC/DC battery chargers and have quasi-resonant Flyback mode with a switching frequency of 50kHz – 300kHz and a maximum duty cycle of 85%. They provide high circuit isolation, multiple outputs, and the possibility of positive or negative output voltages.

The isolation between primary and secondary windings is a critical feature. The transformer has been designed to withstand high voltage spikes that occur during switching. The transformers are also designed to provide sufficient isolation to meet safety requirements (up to 3kV between windings for reinforced isolation level).


The FLYT-004 has an inductance of 17.5µH and a power of 10W. The FLYT-005 has an inductance of 15 µH and a similar power. Both designs are suitable for SMT soldering on PCB (Printed Circuit Board). The specific SMD customized bobbin design guarantees mechanical performance and reliability taking into final size in relation to its nominal power.


OBCs (Onboard Chargers) are typically integrated into the vehicle’s powertrain and require transformers to convert the AC power from external charging stations or home charging units, into the DC (Direct Current) power needed to charge the vehicle’s battery. Flyback transformers are needed for the power supply control unit to provide several different low voltages.


PREMO has developed a fully automatic manufacturing process for this kind of flyback. The current production, deployed in Vietnam plants is fully automated by using collaborative robots from PREMO RoboticsTM. Due to this high automatization level, the high-volume demand coming from electric and hybrid vehicles is secured with top-notch quality levels.


授权代理商:世强先进(深圳)科技股份有限公司
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本文由上山打老虎转载自PREMO News,原文标题为:PREMO extends the transformer series with FLYT-004 and FLYT-005 products, quasi-resonant mode flybacks specifically designed for on-board chargers.,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。

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可定制变压器电压最高4.5KV,高频30MHz;支持平面变压器、平板变压器、OBC变压器、DCDC变压器、PLC信号变压器、3D电源、电流变压器、反激变压器、直流直流变压器、车载充电器变压器、门极驱动变压器等产品定制。

最小起订量: 100000 提交需求>

汽车天线定制

可定制车载智能天线频率:20kHz、114.5 kHz、120- kHz、125 kHz、134 kHz、134.2kHz、134.5 kHz;工作温度范围:-40ºC to ~125ºC;电感范围:100~734;符合AEC-Q200(汽车质量标准)和IP68标准;

最小起订量: 1 提交需求>

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授权代理品牌:接插件及结构件

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授权代理品牌:部件、组件及配件

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授权代理品牌:仪器仪表及测试配组件

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授权代理品牌:电工工具及材料

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授权代理品牌:机械电子元件

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授权代理品牌:加工与定制

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