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| Full bridge controller specified up to 150°C | |
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| Tweet Topic Started: Apr 11 2013, 01:36 PM (23 Views) | |
| Kolton0 | Apr 11 2013, 01:36 PM Post #1 |
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Linear Technology has introduced a new H-grade version of the LTC3722-1, a phase modulated full bridge dc/dc controller with adaptive or manual zero voltage switching (ZVS). The device's ZVS delay control and adjustable synchronous rectification timing are said to optimise efficiency while reducing transformer size and electromagnetic interference, making it well suited for isolated high power applications of up to several kilowatts. The LTC3722-1's adaptive zero voltage technology is accomplished by sensing the bridge mosfets and input voltage, allowing the converter to adapt to any change in load current, temperature, component tolerances, driver circuitry delay or input voltage variations. Additional features include fixed frequency current mode control, adjustable current limit, leading edge blanking, soft start, short-circuit protection and programmable slope compensation. A 5V low dropout regulator provides up to 15mA to power auxiliary circuits. The device is specified over a temperature range of -40 to 150°C. |
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12:37 AM Jul 11