# Is this a proper small signal H-bridge?

The inductor in the middle is the coil of a single-coil latching relay, which requires a H-bridge to drive.

How do I add flyback to the 74HC04's internal MOSFETs? Or should I just rely on body diodes?

simulate this circuit – Schematic created using CircuitLab

• – Tut Sep 22 '15 at 19:40
• You might consider L2293Q Push-pull four channel driver with diodes which is small and could be used to drive two single-coil latching relays. – Tut Sep 22 '15 at 20:47
• Forget the inductance (which isn't real anyways, it's just the default inductor, I know). What is the coil resistance? – WhatRoughBeast Sep 22 '15 at 22:01

• So all okay, just replace the 74LVC1G06 with 74HC06? – Maxthon Chan Sep 22 '15 at 19:03
• Then can I use a few discrete MOSFETs then? a lone 2N7002 replacing the 74LVC1G06 and a complimentary pair AO4606 replacing the high-voltage 74HC04? – Maxthon Chan Sep 22 '15 at 19:10