Patent application number | Description | Published |
20080225456 | Overcurrent Protecting Circuit, Motor Drive Circuit, and Semiconductor Device - An over-current protection circuit of a semiconductor circuit including a power transistor for outputting current output, a first output current detection circuit and a current limiter circuit for limiting the output current by stopping the output current of the power transistor for a predetermined period in response to a first detection signal from the output current detection circuit when the output current of the power transistor reaches a predetermined limit value. The over-current protection circuit has an output current detection transistor current-mirror connected to the power transistor and a second output current detection circuit for generating a second detection signal according to an output current of the output current detection transistor when the output current reaches the predetermined limit value. Further, the output current of the power transistor is cut off for the predetermined period by operating the current limiter circuit in response to the second detection signal. | 09-18-2008 |
20090033405 | DRIVER CIRCUIT AND SEMICONDUCTOR DEVICE USING THE SAME - A driver circuit of the present invention includes: a pair of switch elements (P | 02-05-2009 |
20090079377 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - In a semiconductor integrated circuit device of the invention, a plurality of external terminals include: a first external terminal (VCC, U, V and W terminals in the FIGURE) receiving a higher voltage than the other external terminals; and a second external terminal (FG terminal in the FIGURE) arranged adjacent to the first external terminal as one of the other external terminals, the second external terminal feeding out, from one end of a transistor Q | 03-26-2009 |
20090128967 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - A semiconductor integrated circuit device comprises a first terminal (denoted by VCC) connected to a power supply in a normally mounted state, a second terminal (denoted by SB) connected to a signal line in the normally mounted state and to a power supply in a reversely mounted state, a third terminal (denoted by SGND) connected to the ground in the normally mounted state, fourth terminals (denoted by HU−, HW−) connected to the signal line in the normally mounted state and to the ground in the reversely mounted state, electrostatic protective diodes (denoted by D | 05-21-2009 |
20090190280 | Current limiter circuit and motor drive circuit - A current limiter circuit in an IC having a power transistor and an output current detection circuit connected in series with the power transistor. A comparator, a first reference voltage generator circuit and a second reference voltage generator circuit are also included in the current limiter circuit. The comparator generates a control signal for stopping a drive of the power transistor for a predetermined time. The comparator generates the control signal according to a detection signal obtained by the output current detection circuit and a second reference voltage obtained by the second reference voltage generator circuit when the output current of the power transistor reaches a predetermined value larger than the predetermined limit value. The first reference voltage generator circuit is provided externally of the IC and the second reference voltage generator circuit is included within the IC. | 07-30-2009 |
20100117577 | Motor Drive Device and Electronic Device Using the Same - A motor drive device ( | 05-13-2010 |
20120212251 | SIGNAL TRANSMISSION CIRCUIT DEVICE, SEMICONDUCTOR DEVICE, METHOD AND APPARATUS FOR INSPECTING SEMICONDUCTOR DEVICE, SIGNAL TRANSMISSION DEVICE, AND MOTOR DRIVE APPARATUS USING SIGNAL TRANSMISSION DEVICE - Disclosed is a signal transmission circuit device ( | 08-23-2012 |