ํšŒ๋กœ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๋ฐ ์ž๋™ ์ „๊ธฐ ์‘๋ ฅ ๋ถ„์„

CircuitHawk Precise is BQR’s flagship electrical stress analysis software, aย unique circuit simulator for detailed stress analysis (Power, Voltage and Current) of a complete design.

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์ •ํ™•ํ•œ ์ŠคํŠธ๋ ˆ์Šค ์‹œ๋ฎฌ๋ ˆ์ด์…˜

CircuitHawk Precise performs automated Stress Analysis for complete design in the verification (pre-layout) phase, using a circuit simulator. Accurate stress calculations are performed after the BOM freeze, providing actual operational parameters for all components in the circuit, such as power dissipation, voltage and current for a mixed signal, Analog, Digital, and RF including DC/DC power supplies.
CircuitHawk Precise uses State Vectors for analog circuits, and Bus-Simulation for digital circuits. The results serve as guidance for smart component placement based on component power dissipation.
์„ค๊ณ„๋œ ๋ถ€ํ’ˆ๋“ค์— ๋Œ€ํ•œ ์ „๊ธฐ ์ŠคํŠธ๋ ˆ์Šค ๊ณ„์‚ฐ์—์„œ๋Š” Kirchhoff ๋ฃจํ”„ ๋ฐ Fourier ๋ถ„์„์„ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ์ด ๊ณ„์‚ฐ์€ ๋ถ€ํ’ˆ์œ ํ˜•์— ๋”ฐ๋ฅธ ์ˆ˜์‹ญ ๊ฐœ์˜ ๋ณ€์ˆ˜๋ฅผ ํฌํ•จํ•ฉ๋‹ˆ๋‹ค. ๋˜ํ•œ ์ด ๊ณ„์‚ฐ์€ ์™„์ œํ’ˆ ์„ค๊ณ„์—์„œ๋งŒ ์ˆ˜ํ–‰๋˜๋ฉฐ, ๋™์ž‘์˜จ๋„์—์„œ ์ตœ๋Œ€ ๋ฐ ๊ฒฝ๊ฐ๋œ rating ๋Œ€๋น„ ๋ถ€ํ’ˆ์˜ ์ŠคํŠธ๋ ˆ์Šค๋ฅผ ํ™•์ธํ•˜๊ณ , ๋ ˆ์ด์•„์›ƒ ๋‹จ๊ณ„์—์„œ ์—ด์  ์š”์†Œ๋ฅผ ์ถ”๊ฐ€์ ์œผ๋กœ ๊ณ ๋ คํ•ฉ๋‹ˆ๋‹ค.

 

์‚ฌ๋ก€:

1) ์ „๊ธฐ์  ๋ณ€์ˆ˜ ๊ทœ์น™ ๊ฒ€์‚ฌ
๋‹ค์Œ ์œ ํ˜•์˜ ์˜ค๋ฅ˜๋Š” ํ†ตํ•ฉ ๋ฐ ์ตœ์ข… ํ…Œ์ŠคํŠธ ์ค‘์—, ์‹ฌ์ง€์–ด ๋Œ€๊ทœ๋ชจ RCA (๊ทผ๋ณธ ์›์ธ ๋ถ„์„)์— ์˜ํ•ด์„œ๋„ ๊ฒ€์ถœํ•˜๊ธฐ๊ฐ€ ๋งค์šฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค.
๋Œ€๋ถ€๋ถ„์˜ ๊ฒฝ์šฐ ๋ถ„์„๊ฐ€๋Š” ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ๋น„๋‚œ ํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์™œ๋ƒํ•˜๋ฉด ์•„๋ฌด๊ฒƒ๋„ ํƒœ์›Œ์ง€์ง€ ์•Š์•˜์ง€๋งŒ ์ œํ’ˆ์ด ์ œ๋Œ€๋กœ ์ž‘๋™ํ•˜์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.

Design error detected by circuit simulator

ํŠธ๋žœ์ง€์Šคํ„ฐ Q1์€ U1์˜ pin 40์— ๋””์ง€ํ„ธ ์ž…๋ ฅ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. "1"๋กœ์ง์˜ ๊ฒฝ์šฐ 2.3V ์ด์ƒ, "0"๋กœ์ง์˜ ๊ฒฝ์šฐ 1.0V ๋ฏธ๋งŒ์ด์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

๊ทธ๋Ÿฌ๋‚˜ Q1์€ 1.052V๋ฅผ ์ œ๊ณตํ•˜๋Š”๋ฐ, U1์€ ํ•œ ๋ฒˆ์€ "1"๋กœ ์ดํ•ดํ•˜๊ณ  ํ•œ ๋ฒˆ์€ "0"์œผ๋กœ ์ดํ•ดํ•˜์—ฌ ๊ธฐ๋Šฅ์ด ๋ถˆ์•ˆ์ •ํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.

circuit simulator

CircuitHawk Generates Electrical Stress data for Thermal Analysis

One of the most important parameters for thermal analysis is the actual power dissipated in each component. This power is calculated automatically by the CircuitHawk circuit simulator and can be provided to the thermal analysis tool. Usually, this parameter is unavailable to the thermal engineer and that is why he uses the maximum value of the components power from the datasheet. In this case, these results are the worst case and if we use them we will create over-design such as over-cooling or taking components with higher rating values (which may be desirable), but sometimes it increases the cost and the physical size of the product unnecessarily.

CircuitHawk Generates Electrical Stress data for Reliability Physics (Physics of Failure) Predictions

The product Reliability is measured by the MTBF according to different standards or by the Failure Rate distribution in time using the Physics of Failures method. These calculations are strongly influenced by the stress of each component. In this case, CircuitHawk provides the exact stress and consequently the reliability calculation is more accurate.

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