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I am trying to build a 1553 military standard bus transceiver (analog front end) and I am required to use a single power supply of 3.3 V. To be able to receive, my comparators need supplies of +/- 3.3-10 V to generate the right CMOS logic levels. To transmit, I need even higher voltage supplies for current feedback drivers to amplify 3.3 V logic levels to as high as 20 V peak to peak. I first thought of using a boost converter to first boost 3.3 V to 20 V, then use a rail splitter to get +/- 10 V. But the possible problem with that would be lower current drawn from 3.3 V supply which could be problem for current mode transmission.

What is the best way to distribute such supply levels from a single low supply voltage?

Plus any advise regarding 1553 analog front end bus transceiver implementation would be highly appreciable.

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  • \$\begingroup\$ Your title mentions "high current driving capability" but your question never says what "high" means here. \$\endgroup\$ – The Photon Nov 25 '19 at 23:21
  • \$\begingroup\$ Thank you for the comment, I need currents close to 100mA for driving the isolation transformer. \$\endgroup\$ – Ams Nov 25 '19 at 23:23
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MIL-STD-1553B

  • 1Mbps Bi-Phase HDX on a 1:1.41 ratio transfomer isolated Twin-Ax bus
  • Tx Vout= 18–27 Vpp
  • Twin-Ax is 78 Ohms (60~85)
  • Tx/Rx side has 58 Ohms on each leg. (=0.75 Zo)

It is possible to use a single or bipolar but lower current losses occur with bipolar supply.

There are several ways to generate with boost from 3V to +/- 14V You will need about 5W with 50% duty cycle.

The CT3231M is one such ASIC method but not cheap. enter image description here

GJV289A is the Chinese equivalent of MIL-STD-1553.

Designing the supply requirements comes only after the precise design specs are given for environment, voltage, current, temp rise, ripple, cost etc.**

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  • \$\begingroup\$ "There are several ways to generate with boost from 3V to +/- 14V You will need about 5W with 50% duty cycle." Thats more like what I need right now, what would be the best way to implement such circuit? \$\endgroup\$ – Ams Nov 26 '19 at 10:53
  • \$\begingroup\$ supply requirements comes only after the precise design specs are given for environment, voltage, current, temp rise, ripple, cost etc. \$\endgroup\$ – Tony Stewart Sunnyskyguy EE75 Nov 26 '19 at 14:19
  • \$\begingroup\$ Voltage = 10V, Current = 150mA, temp rise = 85 degrees, ripple = 300mV, what I need here is a general approach. Thanks \$\endgroup\$ – Ams Nov 26 '19 at 16:12
  • \$\begingroup\$ By the way, I am using LT1210 for LINEAR AMP part of the above circuit. Do you recommend other type of amplification? LT1210 is a current feedback amplifier. My input is 0 to 3.3 V CMOS pulse. \$\endgroup\$ – Ams Nov 26 '19 at 18:43

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