# HV Ultrasonic Pulse Amplifier ## Description 用于超声波瞬时信号的高保真高压电压放大器，目标输入最大 10V、增益 100、输出最大 1000V，220VAC 供电，过流阈值 3A，优先采用中国生产电子元件。 ## Project Details - **Owner:** qq6 - **Created:** 5/19/2026 - **Last Updated:** 5/19/2026 - **Visibility:** Public - **Compliance:** RoHS - **Operating Voltage:** 1000V - **Power Requirements:** Mains - **Implementation Details:** Wideband 0–500kHz HV amplifier: input ±10V, output ±1000V peak, HV bus target ±1100V to ±1200V, 1.57kVA burst at 500kHz/C0=1nF, 3A hardware overcurrent shutdown, frequency-dependent voltage limiting, output damping, compensated 100:1 HV feedback, reinforced isolation and safety interlock required ## Key Components ### BR1 — [GBU10M](https://www.flux.ai/lcsc/gbu10m~pz59.md) - Package or Case Code: DIO-BG-TH_GBU - JLCPCB Part Class: Extended Part - Manufacturer Name: FMS(美丽微) - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Part Type: Bridge Rectifiers - Product Info Url: https://lcsc.com/product-detail/Bridge-Rectifiers_FMS-Formosa-Microsemi-GBU10M_C717048.html - Manufacturer Part Number: GBU10M - Role: Rectification - Role Details: 220VAC after fuse/MOV/EMI to high-voltage DC bus; verify exact datasheet current/thermal ratings before production - LCSC Part Number: C717048 **Pins:** - - [pin 4] - + [pin 1] - AC [pin 3] - AC [pin 2] ### CBUS1 — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role: Bulk - Part Type: Non-Polarized Capacitor - Role Details: Offline rectified bus reservoir; size for 1.57kVA burst / 157VA average minimum plus ripple and inrush margin - Capacitance: 220µF - Package: CP_Radial_D18.0mm_P7.50mm - Voltage Rating: 450V **Pins:** - P1 [pin 1] - P2 [pin 2] ### CBUS2 — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Part Type: Non-Polarized Capacitor - Capacitance: 220µF - Voltage Rating: 450V - Package: CP_Radial_D18.0mm_P7.50mm - Role Details: Parallel offline bus reservoir; final capacitance determined by burst droop, ripple current and inrush design - Role: Bulk **Pins:** - P1 [pin 1] - P2 [pin 2] ### CHV_NEG — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role Details: HV_NEG_BUS to HV_RET high-voltage HF filter; final value/rating must match selected certified HV module - Capacitance: 1nF - Package: SMD_1210_3225Metric - Role: Filtering - Voltage Rating: 2kV - Capacitor Type: Film - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### CHV_POS — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role Details: +HV_POS_BUS to HV_RET high-voltage HF filter; final value/rating must match selected certified HV module - Capacitance: 1nF - Package: SMD_1210_3225Metric - Voltage Rating: 2kV - Role: Filtering - Capacitor Type: Film - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### CHVN1 — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Capacitance: 4.7nF - Role: Filtering - Package: C_Disc_D7.5mm_W5.0mm_P10.00mm - Voltage Rating: 2kV - Role Details: -HV output filter capacitor placeholder; final capacitance set by ripple, burst energy and amplifier stability - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### CHVP1 — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role: Filtering - Part Type: Non-Polarized Capacitor - Voltage Rating: 2kV - Package: C_Disc_D7.5mm_W5.0mm_P10.00mm - Role Details: +HV output filter capacitor placeholder; final capacitance set by ripple, burst energy and amplifier stability - Capacitance: 4.7nF **Pins:** - P1 [pin 1] - P2 [pin 2] ### CLOAD — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Part Type: Non-Polarized Capacitor - Role: Energy Storage - Package: SMD_0603_1608Metric - Voltage Rating: 2000V - Capacitance: 1nF - Role Details: Piezo ceramic equivalent C0 load model, 1nF, 2kV rating placeholder **Pins:** - P1 [pin 1] - P2 [pin 2] ### COC_DEC — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role: Decoupling - Part Type: Non-Polarized Capacitor - Voltage Rating: 25V - Role Details: LMV331TP V+ to V- bypass capacitor placed close to UOC1 - Package: SMD_0603_1608Metric - Capacitance: 100nF **Pins:** - P1 [pin 1] - P2 [pin 2] ### COC_IN — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Capacitance: 100pF - Package: SMD_0603_1608Metric - Voltage Rating: 25V - Role: Input Filter - Role Details: With ROC_IN=100Ω gives ~159MHz pole; suppresses RF spikes without slowing 500kHz overcurrent response - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### COC_REF — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Capacitance: 10nF - Role Details: Filters OC_REF threshold node; keep small enough for fast startup - Package: SMD_0603_1608Metric - Voltage Rating: 25V - Role: Reference Filter - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### CX1 — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Capacitance: 100nF - Voltage Rating: 275VACV - Package: C_Disc_D7.5mm_W5.0mm_P10.00mm - Capacitor Type: Film - Part Type: Non-Polarized Capacitor - Role Details: Across AC_L_FUSED and AC_N before certified HV module; must be safety-certified X2 capacitor, not ordinary film/MLCC - Role: Power Filtering **Pins:** - P1 [pin 1] - P2 [pin 2] ### DVN1 — [Generic Silicon Diode](https://www.flux.ai/jharwinbarrozo/generic-silicon-diode~h9.md) - Role: Rectification - Package: THT_DO-201_P15.24mm_Horizontal - Role Details: -HV secondary rectifier placeholder; use ≥2kV reverse voltage fast recovery diode stack, final MPN TBD - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### DVN2 — [Generic Silicon Diode](https://www.flux.ai/jharwinbarrozo/generic-silicon-diode~h9.md) - Part Type: Diode - Role: Rectification - Package: THT_DO-201_P15.24mm_Horizontal - Role Details: -HV voltage multiplier/rectifier placeholder; use ≥2kV reverse voltage fast recovery diode stack, final MPN TBD **Pins:** - A [pin 2] - K [pin 1] ### DVP1 — [Generic Silicon Diode](https://www.flux.ai/jharwinbarrozo/generic-silicon-diode~h9.md) - Role Details: +HV secondary rectifier placeholder; use ≥2kV reverse voltage fast recovery diode stack, final MPN TBD - Package: THT_DO-201_P15.24mm_Horizontal - Part Type: Diode - Role: Rectification **Pins:** - A [pin 2] - K [pin 1] ### DVP2 — [Generic Silicon Diode](https://www.flux.ai/jharwinbarrozo/generic-silicon-diode~h9.md) - Part Type: Diode - Role: Rectification - Package: THT_DO-201_P15.24mm_Horizontal - Role Details: +HV voltage multiplier/rectifier placeholder; use ≥2kV reverse voltage fast recovery diode stack, final MPN TBD **Pins:** - A [pin 2] - K [pin 1] ### F1 — [64900001039](https://www.flux.ai/adrian95/64900001039~47.md) - Datasheet URL: https://www.littelfuse.com/assetdocs/649-series-fuseholder-data-sheet?assetguid=273c538e-be34-4663-90f2-d0254c30b851 - Manufacturer Name: Littelfuse Inc. - Part Type: Fuse - Role: Current Limiting - License: https://creativecommons.org/licenses/by/4.0/ - Current Rating: 6.3A - Role Details: Mains fuse holder; populate with certified 3.15A to 5A time-delay fuse rated for 250VAC or higher - Manufacturer Part Number: 64900001039 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Role: Protection - Role Details: 220VAC L/N input connector; final creepage, clearance, fuse, enclosure and safety certification required - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J4 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Role Details: Differential or balanced ±10V command input connector - Role: Coupling - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J5 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Role Details: High-voltage piezo output connector; target ±1000V peak at 500kHz with C0=1nF - Role: Coupling - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### RBUS1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: Discharge rectified 325VDC bus after power-off; final design should use series safety-rated resistors and verify discharge time - Voltage Rating: 500V - Role: Energy Storage - Package: SMD_2512_6332Metric - Power Rating: 1W - Resistance: 330kΩ - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RBUS2 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Power Rating: 1W - Resistance: 330kΩ - Part Type: Resistor - Voltage Rating: 500V - Package: SMD_2512_6332Metric - Role: Energy Storage - Role Details: Parallel/series-adjusted bus bleeder placeholder; final value set by leakage, standby loss and required safe discharge time **Pins:** - P1 [pin 1] - P2 [pin 2] ### RCX1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Part Type: Resistor - Role Details: Discharges CX1 across AC_L_FUSED/AC_N after unplugging; use mains-rated part/series chain for production safety - Resistance: 1MΩ - Power Rating: 0.25W - Package: SMD_1206_3216Metric - Role: Energy Storage - Voltage Rating: 500V **Pins:** - P1 [pin 1] - P2 [pin 2] ### RFB1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 2.49MΩ - Power Rating: 0.25W - Role: Voltage Division - Part Type: Resistor - Role Details: Series top chain for +HV output monitor; four resistors share voltage stress - Voltage Rating: 500V - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### RFB10 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: Bottom resistor for -HV monitor; ~100:1 divider gives ~-10V at -1000V output - Role: Voltage Division - Power Rating: 0.25W - Package: SMD_0603_1608Metric - Resistance: 100kΩ - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RFB5 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Package: SMD_0603_1608Metric - Power Rating: 0.25W - Role: Voltage Division - Part Type: Resistor - Resistance: 100kΩ - Role Details: Bottom resistor for +HV monitor; ~100:1 divider gives ~+10V at +1000V output **Pins:** - P1 [pin 1] - P2 [pin 2] ### RFB6 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: Series top chain for -HV output monitor; four resistors share voltage stress - Voltage Rating: 500V - Power Rating: 0.25W - Package: SMD_0603_1608Metric - Resistance: 2.49MΩ - Part Type: Resistor - Role: Voltage Division **Pins:** - P1 [pin 1] - P2 [pin 2] ### RG1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Package: SMD_0603_1608Metric - Power Rating: 0.1W - Resistance: 1kΩ - Role Details: Series resistor on ±10V command input before low-voltage conditioner - Role: Protection - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHV_BLEED_NEG — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Package: SMD_2512_6332Metric - Voltage Rating: 2kV - Role Details: HV_NEG_BUS discharge to HV_RET; 1200V/20MΩ≈60µA, 72mW; implement as series HV-rated resistor chain in production - Part Type: Resistor - Power Rating: 0.25W - Resistance: 20MΩ - Role: Energy Storage **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHV_BLEED_POS — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Part Type: Resistor - Role: Energy Storage - Power Rating: 0.25W - Resistance: 20MΩ - Role Details: +HV_POS_BUS discharge to HV_RET; 1200V/20MΩ≈60µA, 72mW; implement as series HV-rated resistor chain in production - Package: SMD_2512_6332Metric - Voltage Rating: 2kV **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHV_IN_NEG — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role: Snubber / Damping - Role Details: Series damping between -HV module output and -HV bus; value placeholder pending selected module output impedance and pulse energy - Voltage Rating: 2kV - Package: SMD_2512_6332Metric - Resistance: 10Ω - Power Rating: 2W - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHV_IN_POS — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: Series damping between +HV module output and +HV bus; value placeholder pending selected module output impedance and pulse energy - Voltage Rating: 2kV - Power Rating: 2W - Package: SMD_2512_6332Metric - Resistance: 10Ω - Role: Snubber / Damping - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHVN_DIS — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Part Type: Resistor - Role Details: -HV bus discharge/monitor load; use series chain to meet voltage rating and creepage - Resistance: 10MΩ - Package: SMD_2512_6332Metric - Role: Protection - Voltage Rating: 2kV - Power Rating: 0.5W **Pins:** - P1 [pin 1] - P2 [pin 2] ### RHVP_DIS — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Part Type: Resistor - Resistance: 10MΩ - Power Rating: 0.5W - Package: SMD_2512_6332Metric - Role: Protection - Voltage Rating: 2kV - Role Details: +HV bus discharge/monitor load; use series chain to meet voltage rating and creepage **Pins:** - P1 [pin 1] - P2 [pin 2] ### ROC_HYS — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Package: SMD_0603_1608Metric - Tolerance: 1% - Role: Hysteresis - Power Rating: 0.1W - Part Type: Resistor - Resistance: 1MΩ - Role Details: Weak feedback from OC_TRIP_N to sense input to avoid chatter near 3A threshold **Pins:** - P1 [pin 1] - P2 [pin 2] ### ROC_IN — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 100Ω - Role: Input Filter - Tolerance: 1% - Part Type: Resistor - Power Rating: 0.1W - Role Details: Series resistor from shunt high side to comparator + input; limits input current and forms HF filter with COC_IN - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### ROC_PULLUP — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 4.7kΩ - Role: Pull-Up - Tolerance: 1% - Part Type: Resistor - Role Details: Pulls OC_TRIP_N to 5V_CTRL; comparator pulls low on overcurrent - Power Rating: 0.1W - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### ROC_REF_BOT — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role: Reference Divider - Power Rating: 0.1W - Package: SMD_0603_1608Metric - Role Details: OC_REF to AGND; threshold approximately 0.301V for 3A with 0.1Ω shunt - Resistance: 1kΩ - Tolerance: 1% - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### ROC_REF_TOP — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 15.6kΩ - Role: Reference Divider - Power Rating: 0.1W - Part Type: Resistor - Tolerance: 1% - Role Details: 5V_CTRL to OC_REF; with 1.00k bottom gives about 0.301V threshold - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### RSH1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role: Sensing (Shunt) - Resistance: 0.1Ω - Part Type: Resistor - Role Details: Output current sense placeholder: 0.1Ω, 1W; 3.14A peak creates 314mV peak - Package: SMD_0603_1608Metric - Power Rating: 1W **Pins:** - P1 [pin 1] - P2 [pin 2] ### RV1 — [TMOV20RP275E](https://www.flux.ai/adrian95/tmov20rp275e~y0.md) - Role: Clamping - Manufacturer Part Number: TMOV20RP275E - Role Details: 275VAC MOV clamp across fused L/N; final design should add thermal protection - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Varistors - Manufacturer Name: Littelfuse Inc. - Datasheet URL: https://www.littelfuse.com/assetdocs/tmov-itmov?assetguid=bd475732-1071-4352-b8aa-f78b0007eb05 **Pins:** - 1 [pin 1] - 2 [pin 2] ### T1 — [750341689](https://www.flux.ai/adrian95/750341689~eou.md) - Package or Case Code: 750341689 - Role Details: Topology placeholder only: primary driven from 325VDC bus; secondary windings feed +HV/-HV rectifier/multiplier. Final turns ratio, insulation, leakage inductance and power rating are TBD. - Manufacturer Part Number: 750341689 - Datasheet URL: https://www.we-online.com/components/products/datasheet/750341689.pdf - Role: Isolation - Part Type: Transformer - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Wurth Elektronik **Pins:** - AUX_12VDC_1 [pin 4] - AUX_12VDC_2 [pin 5] - NC [pin 8] - PRI_90-375V_65KHZ_1 [pin 1] - PRI_90-375V_65KHZ_2 [pin 3] - [email protected]_1 [pin 6] - [email protected]_2 [pin 10] - [email protected]_1 [pin 7] - [email protected]_2 [pin 9] ### UOC1 — [LMV331TP-TR](https://www.flux.ai/lcsc/lmv331tp-tr~87ss.md) - 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/1811031716_3PEAK-LMV331TP-TR_C108095.pdf - Manufacturer Name: 3PEAK - Role: Overcurrent Comparator - Part Type: Comparators - Role Details: Trips when RSH1 voltage exceeds 0.3V, corresponding to 3A peak through 0.1Ω shunt - JLCPCB Part Class: Extended Part - Manufacturer Part Number: LMV331TP-TR - Product Info Url: https://lcsc.com/product-detail/Others_3PEAK-LMV331TP-TR_C108095.html - LCSC Part Number: C108095 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/qq6/hv-ultrasonic-pulse-amplifier~8y](https://www.flux.ai/qq6/hv-ultrasonic-pulse-amplifier~8y).* --- *Generated from [https://www.flux.ai/qq6/hv-ultrasonic-pulse-amplifier~8y](https://www.flux.ai/qq6/hv-ultrasonic-pulse-amplifier~8y)*