Programmable Transistor Switch With Self-Powered Controller
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Solution Overview
Problem
Existing semiconductor technologies face challenges in integrating high voltage and low voltage electronic elements on a single semiconductor chip, particularly in power management integrated circuits, where ensuring reliable power supply to controller circuitry and maintaining functionality without external power is a concern.
Innovation Solution
A discrete semiconductor transistor device with integrated NPN or PNP bipolar junction transistor and controller circuitry that combines analogue and digital computing capabilities, allowing for programmable logic and memory functions, and includes features like one-time programmable memory and voltage regulation to manage power efficiently, enabling high side switching and avoiding power supply maintenance issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If high voltage and low voltage electronic elements are integrated on a single semiconductor chip, then device functionality and integration density are improved, but power supply reliability and circuit protection become more difficult to ensure
Solution Approach 1:
The semiconductor device is divided into distinct first and second circuits with different voltage ratings. The first circuit operates at high voltage while the second circuit operates at low voltage, allowing each circuit to be optimized for its specific voltage requirements. This segmentation enables reliable operation of both high voltage power handling functions and low voltage control functions on the same chip without cross-interference or protection complications.
2Extent of automation
If controller circuitry is integrated on the semiconductor chip, then device intelligence and functionality are improved, but power consumption and heat generation increase
Solution Approach 1:
The controller circuitry is designed to be powered directly from the high voltage circuit it controls, eliminating the need for separate external power supplies. The controller draws its operating power from the same high voltage rail that powers the power circuit, converting a portion of that power for its own operation. This self-powered approach reduces external power requirements and simplifies the overall power architecture.
3Adaptability or versatility
If analogue and digital computing circuitry are combined, then computational versatility and control capability are improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
Analogue computing circuitry and digital computing circuitry are merged into a single integrated controller block on the semiconductor chip. The analogue circuitry handles continuous signal processing while the digital circuitry provides discrete logic functions and control. By combining these complementary computing approaches in one integrated unit, the device achieves enhanced computational versatility for both power circuit control and data processing without requiring separate discrete components, thereby managing complexity through integration rather than multiplication.
Data Source
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AI summary
A transistor device includes a transistor and programmable controller. The controller has an output that controls operation of the transistor. The controller includes analogue computing circuitry and optionally digital computing circuitry that may be used to set up the analogue computing circuitry. In addition to two connectors for connecting the transistor into an external circuit, the device includes a further connector that provides an input to the controller and through which the control can be programmed post manufacture. The transistor device may be a discrete component in which transistor and controlling circuitry are held in packaging, the three connectors exposed through the packaging in order to connect the device to an external circuit.