Surge 產生器電路
MODE-1(高頻脈衝)
輸出波形:
方波波形
DC IN 2 > DC IN 1
MODE-2(Load dump)
輸出波形: 請參考圖1波形。
MODE-3脈衝(場衰減)
Specification
① SURGE GENERATING UNIT
MODE-1（High Frequency Pulse）
Surge output voltage(Vp) 20～200V±10％FS
Time constant(τ) 52μs±5μs (50～200V)
Series resistance(R2) 2.5Ω±2％ (Lumped constant)
Rise time (Tr) Less than 10μs
(10%～90%)
Repeat time(T) 5ms±10％
Output waveform See Fig.1
（Trapezoid wave）
DC IN 1 voltage(Vcc) 0～60V
DC IN 2 Trapezoid wave voltage(Vcc1) 0～60V
DC IN 2>DC IN 1
Pulse duration(tw) 300ms±10％
MODE-2（Load damp）
Surge output voltage(Vp) 20～200V±10％FS
Time constant(τ) 188ms±4ms (50～200V)
Series resistance(R2) 2.5Ω±2％
(Lumped constant)
Rise time(Tr) Less than 1ms (10%～90%)
Repeat time(T) 60s±10％
MODE-3 (Spark surge / Square wave + Negative surge)
Surge output voltage(Vp) ······························· -20V～-200V±10％FS continuously
variable （25Ω loaded）Note 2 & 3
Decay time constant(τ) ··································· 20ms ±5％(-50V～-200V) （25Ω
loaded）Note 2 & 3
Series resistance (R2) ···································· 5Ω ±2％(lumped constant)
Rise time(Tr) (10%～90%) ······························ <10μs
Surge repetition period(T) ······························· 2s ±10％
DC cut time (ts) ············································· 1s ±10％
Delay time from DC OFF to pulse ON (td) ·········· 1ms ±0.5ms
Output voltage -600V (Vc)
Output resistance 1MΩ/300Ω/200Ω
3 values selectable
1MΩ±5 %( lumped constant)
300Ω±2 %( lumped constant)
200Ω±2 %( lumped constant)
Voltage form DC OFF to pulse ON (Output resistance 300Ω, 25Ω loaded)
46.2V ±8V
(Output resistance300Ω,
MODE-3A (Spark surge / Burst wave + Negative surge)
(Negative surge)
Surge output voltage(Vp) ································· -20V～-200V±10％FS
continuously variable (25Ω loaded) Note 2 & 3
Decay time constant(τs) ································· 20ms ±5％(-50V～-200V) (25Ω
loaded) Note 2 & 3
Series resistance (R2) ···································· 5Ω ±2％(lumped constant)
Surge rise time (trs) ········································ <10μs (10%～90%)
Surge repetition period(Ts) ······························ 2s ±10％
(Spark surge / Burst wave)
Pulse output voltage (Vs) ······························· -330V±66V
(at Vcc=12V, Rp=300Ω, 1kΩ attenuator loaded)
Pulse Decay time constant(τp) ········· 60ns±15％
(at Vcc=12V, Rp=300Ω, 1kΩ attenuator
loaded)
Pulse output resistance (Rp) ···························· 300Ω/50Ω switching
Pulse rise time (trp) ········································ 8ns or faster (10%～90%)
(at Vcc=12V, Rp=300Ω, 1kΩ attenuator loaded)
Pulse repetition period (Tp) ······························ 0.5μs~1μs
(Not variable between 0.5μs~1μs, a fixed value)
Pulse output period (t1p) ································· 50μs ±10％
DC cut time (ts) ············································· 1s ±10％
Delay time from DC OFF 0V to negative surge (tds) 55μs -0μs/40μs
(at Vcc=12V, Rp=300Ω, 1kΩ attenuator
loaded)
