# Ultrasonic 500V Piezo HV Amplifier ## Description High-fidelity high-voltage amplifier for 2.5 nF ultrasonic piezo transducer, 10 V input, gain 40, up to 400 V peak single-ended output from 220 VAC with 3 A peak overcurrent protection and China-preferred component sourcing. ## Project Details - **Owner:** qq24 - **Created:** 5/19/2026 - **Last Updated:** 5/22/2026 - **Visibility:** Public - **Power Requirements:** Mains-powered 220 VAC with isolated HV DC bus; output load 2.5 nF, 400 Vpk, 3 A peak current limit - **Domain:** Ultrasonic power electronics / piezo driver - **Implementation Details:** Target input max 10 V, gain 40, single-ended output max 400 Vpk, piezo load 2.5 nF, 0-500 kHz, 3 A peak current limit, China-manufactured components preferred - **Operating Voltage:** 220 VAC input, up to 400 Vpk output - **Copies:** 1 ## Key Components ### BR1 — [GBU606](https://www.flux.ai/lcsc/gbu606~b4w4.md) - Manufacturer Name: MDD(辰达半导体) - Role Details: MDD/LCSC 800V bridge rectifier creates the raw HV DC bus from protected 220VAC input. - Product Info Url: https://lcsc.com/product-detail/Bridge-Rectifiers_Jiangsu-Yutai-Elec-GBU606_C113928.html - LCSC Part Number: C113928 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010301_MDD-Microdiode-Semiconductor-GBU606_C113928.pdf - JLCPCB Part Class: Extended Part - Package or Case Code: DIO-BG-TH_GBU - Role: Rectification - Part Type: Bridge Rectifiers - Manufacturer Part Number: GBU606 **Pins:** - - [pin 4] - + [pin 1] - AC [pin 2] - AC [pin 3] ### F1 — [FH1-200CK-B](https://www.flux.ai/lcsc/fh1-200ck-b~alx1.md) - Manufacturer Part Number: FH1-200CK-B - Manufacturer Name: HONGJU(宏聚) - LCSC Part Number: C268205 - Fuse Type: Cartridge Fuse - JLCPCB Part Class: Extended Part - Voltage Rating: 500V to 1000V - Role: Protection - Part Type: Fuse Holders - Current Rating: 10A - Operating Temperature: 0°C~+85°C - Role Details: Series fuse holder on AC line before MOV, inrush limiter, rectifier, and auxiliary supply. - Package or Case Code: FUSE-TH_L24.8-W9.8-P22.60 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Part Number: XY301V-A-5.0-2P - Manufacturer Name: Ningbo Xinlaiya Elec. - Datasheet URL: https://www.lcsc.com/datasheet/C557651.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=E1BYV1AHFgUMXgFVQ1AMU1JVQFReXgIATwJfA10DFVkxVlNRT1dXXlVTQ1hbUjsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Connector Positions: 2 - Connector Gender: Female - Role: Protection - Role Details: Only external power input interface; 220VAC L/N via 2-position screw terminal block. Verify creepage/clearance in layout because pitch is 5.0mm. - Connector Pitch: 5mm - Connector Type: Terminal Blocks - Connector Rows: 1 - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J2 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Connector Rows: 1 - Datasheet URL: https://www.lcsc.com/datasheet/C557651.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=E1BYV1AHFgUMXgFVQ1AMU1JVQFReXgIATwJfA10DFVkxVlNRT1dXXlVTQ1hbUjsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Connector Positions: 2 - Connector Pitch: 5mm - Manufacturer Name: Ningbo Xinlaiya Elec. - Connector Gender: Female - Manufacturer Part Number: XY301V-A-5.0-2P - Connector Type: Terminal Blocks - Role Details: Only external low-voltage signal input interface; 0-10V input and signal ground via J1-style 2-position screw terminal block. - Role: Coupling - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J3 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Part Number: XY301V-A-5.0-2P - Manufacturer Name: Ningbo Xinlaiya Elec. - Datasheet URL: https://www.lcsc.com/datasheet/C557651.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=E1BYV1AHFgUMXgFVQ1AMU1JVQFReXgIATwJfA10DFVkxVlNRT1dXXlVTQ1hbUjsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Connector Pitch: 5mm - Role: Coupling - Connector Rows: 1 - Role Details: Only external high-voltage signal output interface to the piezo load via J1-style 2-position screw terminal block. Verify clearance during layout/routing. - Connector Type: Terminal Blocks - Connector Gender: Female - Part Type: Connector - Connector Positions: 2 **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### PS1 — [HLK-10M12](https://www.flux.ai/jecstronic/hlk-10m12~0r5.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_HI-LINK-HLK-10M12_C403746.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 10W isolated AC/DC module provides the 12V auxiliary rail from the protected 220VAC input. - Part Type: Power Source - Role: Power Conversion - Manufacturer Name: HI-LINK - Manufacturer Part Number: HLK-10M12 **Pins:** - -VO [pin 3] - +VO [pin 4] - AC_1 [pin 1] - AC_2 [pin 2] ### PS2 — [B1205S-1WR3](https://www.flux.ai/lcsc/b1205s-1wr3~ipuu.md) - LCSC Part Number: C970821 - JLCPCB Part Class: Extended Part - Manufacturer Part Number: B1205S-1WR3 - Role Details: MORNSUN 12V-to-5V isolated DC/DC module powers the signal-input-side modulator while preserving isolation from the offline HV power stage. - Package or Case Code: PWRM-TH_BXXXXS-1WR3 - Product Info Url: https://lcsc.com/product-detail/Power-Modules_MORNSUN-Guangzhou-S-T-B1205S-1WR3_C970821.html - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Role: Isolation - Manufacturer Name: MORNSUN(金升阳) - Part Type: Power Modules **Pins:** - +Vo [pin 4] - 0V [pin 3] - GND [pin 1] - VIN [pin 2] ### Q1 — [SVF14N65CFJ](https://www.flux.ai/lcsc/svf14n65cfj~zjq.md) - Manufacturer Part Number: SVF14N65CFJ - Role Details: Silan 650V 14A MOSFET; selected for 400V peak / 3A peak piezo stage with Chinese manufacturer preference. - LCSC Part Number: C601615 - Role: Switching - Package or Case Code: TO-220-3_L10.0-W4.5-P2.54-L - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006151337_Hangzhou-Silan-Microelectronics-SVF14N65CFJ_C601615.pdf - Part Type: MOSFETs - Manufacturer Name: SILAN(士兰微) - Product Info Url: https://lcsc.com/product-detail/MOSFET_Hangzhou-Silan-Microelectronics-SVF14N65CFJ_C601615.html **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [SVF14N65CFJ](https://www.flux.ai/lcsc/svf14n65cfj~zjq.md) - LCSC Part Number: C601615 - Manufacturer Part Number: SVF14N65CFJ - Role: Switching - Package or Case Code: TO-220-3_L10.0-W4.5-P2.54-L - Role Details: Silan 650V 14A MOSFET; low-side device of the half-bridge output stage. - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006151337_Hangzhou-Silan-Microelectronics-SVF14N65CFJ_C601615.pdf - Part Type: MOSFETs - Product Info Url: https://lcsc.com/product-detail/MOSFET_Hangzhou-Silan-Microelectronics-SVF14N65CFJ_C601615.html - Manufacturer Name: SILAN(士兰微) **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### RT1 — [NTC 10D-20](https://www.flux.ai/cherepanyadima/ntc-10d-20~sw.md) - Datasheet URL: https://setsafe.com/SdwlUploads/Ed/file/20210930/1632984667833069.pdf - Role: Soft Start - Part Type: termistor - Role Details: 10Ω cold NTC, 6A max continuous rating, limits charging surge into the rectified HV bus. - Manufacturer Part Number: NTC 10D-20 - Manufacturer Name: NTC **Pins:** - ~ [pin 2] - ~ [pin 1] ### RV1 — [MOV-14D471K](https://www.flux.ai/lcsc/mov-14d471k~vk7l.md) - Role: Protection - Manufacturer Name: BOURNS - JLCPCB Part Class: Extended Part - Package or Case Code: RES-TH_L16.5-W5.4-P7.50-D0.8-S2.80 - LCSC Part Number: C1527439 - Part Type: Varistors - Manufacturer Part Number: MOV-14D471K - Role Details: 471K MOV clamps mains surges across line and neutral after the fuse. **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [2EDL23N06PJXUMA1](https://www.flux.ai/kicad-part-library/2edl23n06pjxuma1~5q.md) - Package or Case Code: SOIC-14_3.9x8.7mm_P1.27mm - Role: Switching - Manufacturer Name: Infineon Technologies AG - Manufacturer Part Number: 2EDL23N06PJXUMA1 - Datasheet URL: https://www.infineon.com/dgdl/Infineon-2EDL23x06xx-DS-v02_01-EN.pdf?fileId=5546d46146d18cb4014738a20c5236f0 - Role Details: 600V half-bridge driver drives the high-side and low-side MOSFETs; datasheet requires VDD/VBS 10V to 17.5V and VB-VS bootstrap capacitor. **Pins:** - EN/FLT [pin 4] - GND [pin 5] - HIN [pin 2] - HO [pin 11] - LIN [pin 3] - LO [pin 7] - NC [pin 14] - NC [pin 9] - NC [pin 13] - NC [pin 8] - PGND [pin 6] - VB [pin 12] - VDD [pin 1] - VS [pin 10] ### U2 — [TLV3501AID](https://www.flux.ai/kicad-part-library/tlv3501aid~pbx.md) - Manufacturer Part Number: TLV3501AID - Role: Protection - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv3501.pdf - Role Details: 4.5ns comparator detects current-sense threshold and pulls the gate driver enable/fault path low for fast hardware current limiting. - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: SOIC-8_3.9x4.9mm_P1.27mm **Pins:** - - [pin 2] - + [pin 3] - ~ [pin 6] - NC [pin 5] - NC [pin 1] - SHDN [pin 8] - V- [pin 4] - V+ [pin 7] ### U3 — [TLV3501AID](https://www.flux.ai/kicad-part-library/tlv3501aid~pbx.md) - Package or Case Code: SOIC-8_3.9x4.9mm_P1.27mm - Manufacturer Name: Texas Instruments Inc. - Role Details: Compares scaled 10V input command against a high-frequency ramp carrier to create PWM for the half-bridge driver. - Role: Modulation / Demodulation - Manufacturer Part Number: TLV3501AID - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv3501.pdf **Pins:** - - [pin 2] - + [pin 3] - ~ [pin 6] - NC [pin 5] - NC [pin 1] - SHDN [pin 8] - V- [pin 4] - V+ [pin 7] ### U4 — [SI8662BB-B-IS1](https://www.flux.ai/lcsc/si8662bb-b-is1~l570.md) - Manufacturer Name: SKYWORKS/SILICON LABS(芯科) - Manufacturer Part Number: SI8662BB-B-IS1 - Part Type: Digital Isolators - LCSC Part Number: C430287 - JLCPCB Part Class: Extended Part - Role: Isolation - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010131_SKYWORKS-SILICON-LABS-SI8662BB-B-IS1_C430287.pdf - Package or Case Code: SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL - Role Details: 150Mbps six-channel digital isolator transfers PWM/control signals across the input isolation barrier; datasheet requires 0.1µF bypass on each VDD side. - Product Info Url: https://lcsc.com/product-detail/Digital-Isolators_SILICON-LABS-SI8662BB-B-IS1_C430287.html **Pins:** - A1 [pin 2] - A2 [pin 3] - A3 [pin 4] - A4 [pin 5] - A5 [pin 6] - A6 [pin 7] - B1 [pin 15] - B2 [pin 14] - B3 [pin 13] - B4 [pin 12] - B5 [pin 11] - B6 [pin 10] - GND1 [pin 8] - GND2 [pin 9] - VDD1 [pin 1] - VDD2 [pin 16] ### U5 — [H7650-50GR](https://www.flux.ai/lcsc/h7650-50gr~anir.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912111437_Shanghai-Siproin-Microelectronics-H7650-50GR_C411048.pdf - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Low-Dropout-Regulators-LDO_Shanghai-Siproin-Microelectronics-H7650-50GR_C411048.html - Manufacturer Name: Siproin(上海矽朋) - Manufacturer Part Number: H7650-50GR - Role: Power Conversion - Part Type: Linear Voltage Regulators (LDO) - LCSC Part Number: C411048 - Package or Case Code: SOT-223_L6.3-W3.5-P2.30-LS7.0-BR - Role Details: 12V to 5V linear regulator for U4 VDD2 and power-side TLV3501 comparators; estimated load <50mA, dissipation about 0.35W at 50mA. **Pins:** - TAB [pin 4] - VIN [pin 1] - VOUT [pin 3] - VSS [pin 2] ### U6 — [TLV3501AID](https://www.flux.ai/kicad-part-library/tlv3501aid~pbx.md) - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: SOIC-8_3.9x4.9mm_P1.27mm - Manufacturer Part Number: TLV3501AID - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv3501.pdf - Role Details: High-speed TLV3501 relaxation oscillator creates local PWM carrier; frequency is initial estimate and must be tuned/validated for fidelity. - Role: Oscillator **Pins:** - - [pin 2] - + [pin 3] - ~ [pin 6] - NC [pin 5] - NC [pin 1] - SHDN [pin 8] - V- [pin 4] - V+ [pin 7] ### U7 — [SN74LVC1G04DBVR](https://www.flux.ai/lcsc/sn74lvc1g04dbvr~w1fc.md) - Manufacturer Name: UMW(友台半导体) - Role Details: UMW single inverter creates complementary PWM for U1 LIN from U4 B1/HIN path; propagation/dead-time must be validated. - Role: Logic-level Shifting - Product Info Url: https://lcsc.com/product-detail/Gates-and-Inverters_Youtai-Semiconductor-Co-Ltd-SN74LVC1G04DBVR_C434067.html - Voltage Supply: 1.65 ~ 5.5V - LCSC Part Number: C434067 - Supply Current (max): 10uA - Operating Temperature: -40℃~+125℃ - JLCPCB Part Class: Extended Part - Part Type: Gates - Package or Case Code: SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2405141144_UMW-Youtai-Semiconductor-Co---Ltd--SN74LVC1G04DBVR_C434067.pdf - Manufacturer Part Number: SN74LVC1G04DBVR **Pins:** - A [pin 2] - GND [pin 3] - NC [pin 1] - VCC [pin 5] - Y [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/qq24/ultrasonic-500v-piezo-hv-amplifier~rk](https://www.flux.ai/qq24/ultrasonic-500v-piezo-hv-amplifier~rk).* --- *Generated from [https://www.flux.ai/qq24/ultrasonic-500v-piezo-hv-amplifier~rk](https://www.flux.ai/qq24/ultrasonic-500v-piezo-hv-amplifier~rk)*