By Bob Dobkin, John Hamburger
Design be aware Collection, the 3rd booklet within the Analog Circuit Design series, is a finished quantity of utilized circuit layout recommendations, delivering stylish and sensible layout ideas. layout Notes during this quantity are centred circuit motives, simply utilized on your personal designs. This publication contains an intensive energy administration part, overlaying switching regulator layout, linear regulator layout, microprocessor energy layout, battery administration, powering LED lighting fixtures, automobile and business energy layout. different sections span a variety of analog layout subject matters, together with facts conversion, info acquisition, communications interface layout, operational amplifier layout recommendations, filter out layout, and instant, RF, communications and community layout. no matter what your program -industrial, clinical, protection, embedded platforms, instrumentation, automobile, communications infrastructure, satellite tv for pc and radar, desktops or networking; this booklet will supply useful layout suggestions, built by way of specialists for tackling the demanding situations of energy administration, info conversion, sign conditioning and wireless/RF analog circuit design.
- A wealthy choice of utilized analog circuit layout ideas to be used on your personal designs.
- Each layout be aware is gifted in a concise, two-page structure, making it effortless to learn and assimilate.
- Contributions from the top lighting in analog layout, together with Bob Dobkin, Jim Williams, George Erdi and Carl Nelson, between others.
- Extensive sections protecting energy administration, facts conversion, sign conditioning, and wireless/RF.
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Additional resources for Analog Circuit Design Volume Three: Design Note Collection
2 shows the typical waveforms for a 10A load step transient, resulting in only a 60mV maximum deviation from nominal. 1. The sense voltage is translated into a power stage input current by the LTC3883’s 16-bit internal ADC. In addition, an internal IC sense resistor senses the chip’s supply current at VIN, so it can provide both the chip and the power stage’s input current measurements. Inductor DCR autocalibration The problem with conventional inductor DCR current sensing is that the tolerance of the DCR can be as large as ±10%, greatly limiting the current read back accuracy.
1 can be easily modified to fit a wide range of applications. 5k. If higher current is required, add more MOSFETs in parallel and use a bigger transformer and output inductor. If lower power is required, smaller power components can be used. For lower input voltages use a lower voltage primary MOSFET, lower current sense resistor value, proportionally reduce the transformer turns ratio and lower the value of R2. Conversely, for higher input voltages, increase these values. This circuit can also be modified to make a 12V, 20A bus converter.
Conclusion The LTC3883 combines a best in class analog DC/DC controller with complete power system management functions and precision data converters for unprecedented performance and control. Multiple LTC3883s can be used with other Linear Technology PMBus products to optimize multirail power systems. The powerful LTpowerPlay software simplifies the development of complex power systems. If dual outputs are needed, use the LTC3880 which shares common power system management features. 3 • DCR Autocalibration 6 D I IN One device replaces battery charger, pushbutton controller, LED driver and voltage regulator ICs in portable electronics 2 Marty Merchant Introduction The LTC3577/LTC3577-1 integrates a number of portable device power management functions into one IC, reducing complexity, cost and board area in handheld devices.
Analog Circuit Design Volume Three: Design Note Collection by Bob Dobkin, John Hamburger