| 摘要 |
<p>A voltage driver having a pass transistor using a sensing diode and disabling transistor to sense and disable the driver during a short circuit condition. No current sense resistors or other devices in series with the pass transistor are used. During short circuit condition, the collector-emitter (or drain-source) voltage of the pass transistor prevents the sensing diode from conducting which causes the disabling transistor to remove the control signal to the pass transistor. This latches the driver output off, protecting the driver from the short circuit condition. Recycling the control signal unlatches the protection, allowing another attempt to turn on the driver.</p> |
