The phase-shifted full-bridge transformer uses a full-bridge converter composed of two sets of four-quadrant power switches to perform high-frequency modulation and demodulation of the input power frequency voltage.,And use high-frequency transformers to achieve electrical isolation。
Phase-shifted full-bridge transformer
Description
The phase-shifted full-bridge transformer uses a full-bridge converter composed of two sets of four-quadrant power switches to perform high-frequency modulation and demodulation of the input power frequency voltage.,And use high-frequency transformers to achieve electrical isolation。利用移相控制调节输出工频电压的幅值,实现输出电压的连续调节,实现系统输出的闭环控制。这不仅取代了传统变压器的功能,而且扩展了其功能。
优势:
(1)漏感可控制在主电感的1%-10%以内;漏感精度高;
(2)磁芯电磁耦合好,结构简单,生产效率高;
(3)工作频率高,功率密度高,频率在50kHz~300kHz左右。
(4)优良的散热特性,具有很高的表面积与体积比,热通道很短,便于散热。
(5)效率高,特殊几何形状的磁芯结构可有效降低铁芯损耗。
(6)电磁辐射干扰小。功率损耗低、温升低、效率高。
feature:
◆ 高可靠性,符合AEC-Q200;
◆ 损耗低;
◆ 高稳定性、高一致性;
◆ 功率密度高,散热好;
◆ 居里温度高;
◆ 组装方便
application:
广泛应用于高频开关电源变压器、高频大功率变压器、脉冲变压器、Electronic transformer、逆变焊机变压器、车载电源、智能设备、五金机械、illumination、网络音响等。
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