Chip Programming Device Orientation Detection Circuit
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Solution Overview
Problem
Conventional chip programming devices lack a method to determine the correct orientation of chips during programming, leading to potential short-circuit damage and reduced system efficiency due to the symmetric arrangement of pins without orientation markings.
Innovation Solution
A chip programming device with a chip socket and a protecting circuit that includes a power terminal, ground terminal, and an enable signal input/output system, which provides power to the chip only when correctly oriented and alerts the user through an indicator, such as an LED, if the chip is incorrectly placed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the chip is placed in the chip programming device without orientation determination, then the programming operation can be performed, but the chip may be damaged due to short-circuit when placed reversely
Solution Approach 1:
The patent applies preliminary action by implementing an orientation determination mechanism before the programming operation. The chip orientation is detected using a detection circuit that checks the electrical connection status between the chip and the programming device. Only when correct orientation is confirmed does the system enable power supply and allow programming to proceed, preventing reverse placement damage before it can occur.
Solution Approach 2:
The patent uses an intermediary mechanism in the form of a detection circuit and control circuit that mediate between the chip placement and the programming operation. This intermediary layer checks the orientation status and controls the power supply accordingly, acting as a safeguard that prevents direct damage to the chip while maintaining operational efficiency.
2Device complexity
If the chip pins are arranged symmetrically without orientation markings, then the device structure is simplified, but it becomes difficult to determine the correct placement direction of the chip
Solution Approach 1:
The patent implements feedback by providing visual indication through an indicator light that shows whether the chip is correctly oriented. The detection circuit monitors the electrical connection status and feeds this information back to the user via the indicator light, guiding proper chip placement without requiring complex structural modifications to the socket itself.
Solution Approach 2:
The patent replaces mechanical orientation markings or asymmetric socket designs with an electrical detection system. Instead of relying on mechanical features for orientation identification, the system uses electrical connection detection and control circuits to determine chip orientation, substituting a mechanical approach with an electrical/electronic solution.
Data Source
AI summary
A chip programming device comprises a chip socket and a protecting circuit. The chip socket is configured to accommodate a chip to be programmed, is electrically connected with a circuit board, and comprises a power terminal and a ground terminal which are configured to connect to the chip. The protecting circuit is disposed on the circuit board, and comprises a power input terminal, an enable signal input terminal and a power output terminal which is electrically connected to the power terminal of the chip socket. The protecting circuit receives a power signal via the power input terminal, receives an enable signal via the enable signal input terminal, provides the power signal to the chip socket via the power output terminal when the enable signal has a first electric potential, and terminates the power signal to the chip socket when the enable signal has a second electric potential.