Browse Prior Art Database

Multi-Output Level, Voltage Driver

IP.com Disclosure Number: IPCOM000060508D
Original Publication Date: 1986-Apr-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Bonnet, Y: AUTHOR

Abstract

This driver is made to operate with Å 48 V or floating power supplies and provides output pulses of either positive or negative polarities or even floating pulses. It can also deliver output pulses featuring two different levels of amplitude. The voltage driver is based on a DC/DC converter operating at a high frequency clock (100 KHz). A master oscillator provides the driver with two complementary clocks with non-overlapping active levels. These complementary clocks are fed to transistors TS1 and TS2 via two open collector drivers, whereby transistors TS1 and TS2 are alternatively brought to non-conduction. A 100 KHz wave is generated which is DC converted by D1-D2 and fed to the RLoad.

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Multi-Output Level, Voltage Driver

This driver is made to operate with Å 48 V or floating power supplies and provides output pulses of either positive or negative polarities or even floating pulses. It can also deliver output pulses featuring two different levels of amplitude. The voltage driver is based on a DC/DC converter operating at a high frequency clock (100 KHz). A master oscillator provides the driver with two complementary clocks with non-overlapping active levels. These complementary clocks are fed to transistors TS1 and TS2 via two open collector drivers, whereby transistors TS1 and TS2 are alternatively brought to non-conduction. A 100 KHz wave is generated which is DC converted by D1-D2 and fed to the RLoad. The principle of operation of the DC/DC converter is such that the primary side and the secondary side of the transformer are electrostatically isolated from each other. This allows the connection of the + or - output to any desired reference. In case of hardware or component failure, the DC/DC circuit is turned to a non- switching condition which, in turn, stops providing full-wave rectification at the secondary of the transformer with an AC signal, thereby preventing the load from receiving non-desired voltage.

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