Programmable logic device with integrated high voltage power FET

• US 10,291,229 B2
• Filed: 12/26/2017
• Issued: 05/14/2019
• Est. Priority Date: 10/27/2015
• Status: Active Grant

• Current Assignee: Andapt Holdings Limited
• Original Assignee: AnDAPT, Inc.
• Inventors: Shankar, Kapil, Chan, Thomas, Crotty, Patrick J., Birkner, John
• Primary Examiner(s): White, Dylan C
• Application Number:
  US15/854,589
• Publication Number:
  US 20180123596A1
• Time in Patent Office: 504 Days
• Field of Search: 326 37- 41, 326 47
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 1/28 Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
• CPC Class Codes: H02M 3/158 including plural semiconductor devices as final control devices for a single load
• CPC Class Codes: H02M 3/1588 comprising at least one synchronous rectifier element H02M3/1582, H02M3/1584 take precedence
• CPC Class Codes: H03K 19/017509 Interface arrangements
• CPC Class Codes: H03K 19/17744 for input/output signals
• CPC Class Codes: H03K 19/1776 for memories
• CPC Class Codes: H03K 19/17772 for powering on or off
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

A programmable logic device (PLD) includes a programmable fabric, a plurality of input/output (I/O) blocks, and a plurality of high voltage power field effect transistors (FETs). The PLD can be programmed to connect one or more of the plurality of I/O blocks, one or more of the plurality of high voltage power transistors via the programmable fabric. Each of the plurality of high voltage power transistors includes a drain pad and a source pad that are exposed via external pins of the PLD.

Claims

1. A programmable logic device (PLD) comprising:

a programmable fabric including a plurality of logic elements and a plurality of routing channels;

a plurality of input/output (I/O) blocks; and

a plurality of power transistors,

wherein the PLD is programmable to connect one or more of the plurality of I/O blocks, one or more of the plurality of power transistors via the programmable fabric, and

wherein each of the plurality of power transistors are selected from a group comprising a double diffused metal oxide semiconductor (DMOS) power transistor, a V-Groove MOS (VMOS) power transistor, and an insulated gate bipolar transistor (IGBT),

wherein a first power transistor of the plurality of power transistors is programmable to provide a power supply, and operating characteristics of the power supply is programmable by programming the programmable fabric, and

wherein the operating characteristics of the power supply include one or more of voltage levels, turn-on and turn-off sequences, a switching frequency, a voltage ramp rate, tracking between outputs, protection and monitoring.

2. The PLD of claim 1, wherein the power transistors are discretely integrated with the programmable fabric.

3. The PLD of claim 1, wherein the plurality of logic elements included in the programmable fabric are implemented with a complementary metal oxide semiconductor (CMOS) circuit.

4. The PLD of claim 1, wherein the plurality of logic elements includes one or more of memory blocks including a static random-access memory (SRAM), and a non-volatile memory, look up tables, flip flops, and logic gates.

5. The PLD of claim 1, wherein each of the plurality of power transistors includes a drain pad and a source pad that are exposed via external pins of the PLD.

6. The PLD of claim 1, wherein each of the plurality of power transistors is capable of handling a voltage ranging from 12V to 80V and current up to 12 A.

7. The PLD of claim 1, wherein the drain pad and the source pad are connected to an external electric element or device.

8. The PLD of claim 1, wherein a second power transistor of the plurality of power transistors is programmable to drive an external power transistor.

9. The PLD of claim 1, wherein a first group of the plurality of power transistors is coupled to provide a first power switch.

10. The PLD of claim 9, wherein the first power switch is one of a voltage mode buck switching converter, a current mode buck switching converter, a boost regulator, a buck-boost regulator, a low drop-out (LDO) regulator, a load switch, a mux, a battery charger, an external switching controller, a gate driver, and an integrator.

11. The PLD of claim 1, further comprising a plurality of functional blocks including adaptive blocks.

12. The PLD of claim 11, wherein the adaptive blocks comprise one or more of an analog-to-digital converter (ADC) block, a comparator block, a memory block, a pulse-width modulation (PWM) block, a voltage reference block, and a timer block.

13. A programmable logic device (PLD) comprising:

a programmable fabric including a plurality of logic elements and a plurality of routing channels;

a plurality of input/output (I/O) blocks; and

a plurality of power transistors,

wherein the PLD is programmable to connect one or more of the plurality of I/O blocks, one or more of the plurality of power transistors via the programmable fabric, and

wherein each of the plurality of power transistors are selected from a group comprising a double diffused metal oxide semiconductor (DMOS) power transistor, a V-Groove MOS (VMOS) power transistor, and an insulated gate bipolar transistor (IGBT),

wherein a first group of the plurality of power transistors is coupled to provide a first power switch, and

wherein a second group of the plurality of power transistors is coupled to provide a second power switch, and wherein the first power switch is a first buck converter, and the second power switch is a second buck converter.

14. A programmable logic device (PLD) comprising:

a programmable fabric including a plurality of logic elements and a plurality of routing channels;

a plurality of input/output (I/O) blocks; and

a plurality of power transistors,

wherein the PLD is programmable to connect one or more of the plurality of I/O blocks, one or more of the plurality of power transistors via the programmable fabric, and

wherein a first power transistor of the plurality of power transistors is programmable to provide a power supply, and operating characteristics of the power supply is programmable by programming the programmable fabric, and

wherein the operating characteristics of the power supply include one or more of voltage levels, turn-on and turn-off sequences, a switching frequency, a voltage ramp rate, tracking between outputs, protection and monitoring.

15. The PLD of claim 14, wherein the power transistors are discretely integrated with the programmable fabric.

16. The PLD of claim 14, wherein the plurality of logic elements included in the programmable fabric are implemented with a complementary metal oxide semiconductor (CMOS) circuit.

17. The PLD of claim 14, wherein a second power transistor of the plurality of power transistors is programmable to drive an external power transistor.

18. The PLD of claim 14, further comprising a plurality of functional blocks including adaptive blocks comprising one or more of an analog-to-digital converter (ADC) block, a comparator block, a memory block, a pulse-width modulation (PWM) block, a voltage reference block, and a timer block.