US 9,812,941 B2
High power driver having multiple turn off modes
Thierry Michel Alain Sicard, Austin, TX (US); Ibrahim Shihadeh Kandah, Austin, TX (US); and Philippe Jean Pierre Perruchoud, Austin, TX (US)
Assigned to NXP USA, INC., Austin, TX (US)
Filed by FREESCALE SEMICONDUCTOR, INC., Austin, TX (US)
Filed on Jun. 27, 2016, as Appl. No. 15/193,559.
Claims priority of application No. PCT/IB2015/001892 (WO), filed on Sep. 11, 2015.
Prior Publication US 2017/0077805 A1, Mar. 16, 2017
Int. Cl. H02M 1/08 (2006.01); H02M 1/32 (2007.01); H03K 17/082 (2006.01)
CPC H02M 1/08 (2013.01) [H02M 1/32 (2013.01); H03K 17/0828 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A transistor circuit, comprising:
a transistor having a control electrode, a first current electrode, and a second current electrode;
a turn off mode change circuit that has a signal input that receives a series of pulses, an output coupled to the control electrode of the transistor, and a control input, wherein the turn off mode change circuit has a first turn off mode and a second turn off mode, the turn off mode change circuit comprises:
a logic circuit having a first output, and a second output,
a low current path having an input coupled to the first output of the logic circuit and an output coupled between the control electrode and the second current electrode, and
a high current path having an input coupled to the second output of the logic circuit and an output coupled between the control electrode and the second current electrode; and
a turn off mode detection circuit coupled between the first current electrode and the second current electrode that detects when a transition from the first turn off mode to the second turn off mode is desired and when a transition from the second turn off mode to the first turn off mode may be performed.