CONTROL DEVICE EMPLOYED IN A SWITCHED ELECTRICAL POWER SUPPLY SYSTEM

摘要

The invention relates to a control device (1) employed in a switched electrical power supply system to control a DC/DC converter of said switched electrical power supply system, said control device comprising a first input terminal (A) and a second input terminal (B), a first transistor (T1) connected via its source to the second input terminal (B) and a second transistor (T2) furnished with a gate (G) and connected via its drain (D) to the first input terminal (A), and via its source (S) to the first transistor (T1), the control device comprising a control assembly connected to the gate (G) of the second transistor (T2) and to the second input terminal (B) and comprising a capacitor (Ca) and a first Zener diode (Dz1) connected in series to said capacitor (Ca) and a second Zener diode (Dz2) connected between the gate (G) and the source (S) of the second transistor (T2).

主权项

1. Control device (1) intended to be employed in a switched electrical power supply system to control a DC/DC converter of said switched electrical power supply system, said control device comprising a first input terminal (A) and a second input terminal (B), a first transistor (T1) connected via its source to the second input terminal (B) and furnished with a gate (G) intended to receive control signals originating from a control unit (U) and a second transistor (T2) provided with a gate (G) and connected via its drain (D) to the first input terminal (A), and via its source (S) to the first transistor (T1), characterized in that the control device includes:
a control assembly connected to the gate (G) of the second transistor (T2) and to the second input terminal (B) and including a capacitor (Ca) and a voltage clipping/routing device connected in series to said capacitor (Ca), a Zener diode (Dz2) connected between the gate (G) and the source (S) of the second transistor (T2).